CMP Associates Regulation Blog

Zero interest rates and quantitative easing are designed to lower costs of borrowing for investment and consumption, increase stock market valuations and devalue the dollar. In practice, the carry trade is from zero interest rates to a large variety of risk financial assets including commodities. Resulting commodity price inflation squeezes family budgets and deteriorates the terms of trade with negative effects on aggregate demand and employment. Excessive valuations of risk financial assets eventually result in crashes of financial markets with possible adverse effects on economic activity and employment.

The history of producer price inflation in the past five decades does not provide evidence of deflation. The finished core PPI does not register even one single year of decline, as shown in Table PPIEX.

Table PPIEX, Annual Percentage Changes of the PPI Finished Goods Excluding Food and Energy

Year	Annual ∆%
1974	11.4
1975	11.4
1976	5.7
1977	6.0
1978	7.5
1979	8.9
1980	11.2
1981	8.6
1982	5.7
1983	3.0
1984	2.4
1985	2.5
1986	2.3
1987	2.4
1988	3.3
1989	4.4
1990	3.7
1991	3.6
1992	2.4
1993	1.2
1994	1.0
1995	2.1
1996	1.4
1997	0.3
1998	0.9
1999	1.7
2000	1.3
2001	1.4
2002	0.1
2003	0.2
2004	1.5
2005	2.4
2006	1.5
2007	1.9
2008	3.4
2009	2.6
2010	1.2
2011	2.4
2012	2.6
2013	1.5

Source: Bureau of Labor Statistics

The headline PPI experienced only six isolated cases of decline since the 1960s (http://cmpassocregulationblog.blogspot.com/2011/08/world-financial-turbulence-global.html):

-0.3 percent in 1963,

-1.4 percent in 1986,

-0.8 percent in 1998,

-1.3 percent in 2002

-2.6 percent in 2009.

Deflation should show persistent cases of decline of prices and not isolated events. Fear of deflation in the US has caused a distraction of monetary policy. Symmetric inflation targets around 2 percent in the presence of multiple lags in effect of monetary policy and imperfect knowledge and forecasting are mostly unfeasible and likely to cause price and financial instability instead of desired price and financial stability.

Chart I-1 provides US nominal GDP from 1929 to 2013. The chart disguises the decline of nominal GDP during the 1930s from $104.6 billion in 1929 to $57.2 billion in 1933 or by 45.3 percent (data from the US Bureau of Economic Analysis at http://www.bea.gov/iTable/index_nipa.cfm). The level of nominal GDP reached $102.9 billion in 1940 and exceeded the $104.6 billion of 1929 only with $129.4 billion in 1941. The only major visible bump in the chart occurred in the recession of IVQ2007 to IIQ2009 with revised cumulative decline of real GDP of 4.3 percent. US nominal GDP fell from $14,720.3 billion in 2008 to $14,417.9 billion in 2009 or by 2.1 percent. US nominal GDP rose to $14,958.3 billion in 2010 or by 3.7 percent and to $15,533.8 billion in 2011 for an additional 3.8 percent for cumulative increase of 7.7 percent relative to 2009 and to $16,244.6 billion in 2012 for an additional 4.6 percent and cumulative increase of 12.7 percent relative to 2009. US nominal GDP increased from $14,480.3 in 2007 to $16,799.7 billion in 2013 or by 16.0 percent at the average annual rate of 2.5 percent per year (http://www.bea.gov/iTable/index_nipa.cfm). Tendency for deflation would be reflected in persistent bumps. In contrast, during the Great Depression in the four years of 1929 to 1933, GDP in constant dollars fell 26.3 percent cumulatively and fell 45.3 percent in current dollars (Pelaez and Pelaez, Financial Regulation after the Global Recession (2009a), 150-2, Pelaez and Pelaez, Globalization and the State, Vol. II (2009b), 205-7). The comparison of the global recession after 2007 with the Great Depression is entirely misleading (http://cmpassocregulationblog.blogspot.com/2014/03/financial-uncertainty-mediocre-cyclical.html).

Chart I-1, US, Nominal GDP 1929-2013

Source: US Bureau of Economic Analysis

Chart I-2 provides US real GDP from 1929 to 2013. The chart also disguises the Great Depression of the 1930s. In the four years of 1929 to 1933, GDP in constant dollars fell 26.3 percent cumulatively and fell 45.3 percent in current dollars (Pelaez and Pelaez, Financial Regulation after the Global Recession (2009a), 150-2, Pelaez and Pelaez, Globalization and the State, Vol. II (2009b), 205-7; data from the US Bureau of Economic Analysis at http://www.bea.gov/iTable/index_nipa.cfm). Persistent deflation threatening real economic activity would also be reflected in the series of long-term growth of real GDP. There is no such behavior in Chart I-2 except for periodic recessions in the US economy that have occurred throughout history.

Chart I-2, US, Real GDP 1929-2013

Source: US Bureau of Economic Analysis

Deflation would also be in evidence in long-term series of prices in the form of bumps. The GDP implicit deflator series in Chart I-3 from 1929 to 2013 shows sharp dynamic behavior over time. There is decline of the implicit price deflator of GDP by 25.8 percent from 1929 to 1933 (data from the US Bureau of Economic Analysis at http://www.bea.gov/iTable/index_nipa.cfm). In contrast, the implicit price deflator of GDP of the US increased from 97.335 (2009 =100) in 2007 to 100.00 in 2009 or by 2.7 percent and increased to 106.588 in 2013 or by 6.6 percent relative to 2009 and 9.5 percent relative to 2007. The implicit price deflator of US GDP increased in every quarter from IVQ2007 to IVQ2012 with only two declines from 100.064 in IQ2009 to 99.897 in IIQ2009 or by 0.2 percent and to 99.874 in IIIQ2009 for cumulative 0.2 percent relative to IQ2009 and -0.02 percent relative to IIQ2009 (http://www.bea.gov/iTable/index_nipa.cfm). Wars are characterized by rapidly rising prices followed by declines when peace is restored. The US economy is not plagued by deflation but by long-run inflation.

Chart I-3, US, GDP Implicit Price Deflator 1929-2013

Source: US Bureau of Economic Analysis

Chart I-4 provides percent change from preceding quarter in prices of GDP at seasonally adjusted annual rates (SAAR) from 1980 to 2013. There is one case of negative change by 0.6 percent in IIQ2009 that was adjustment from 2.8 percent in IIIQ2008 following 2.3 percent in IQ2008 and 1.8 percent IIQ2008 caused by carry trades from policy interest rates being moved to zero into commodity futures. These positions were reversed because of the fear of toxic assets in banks in the proposal of TARP in late 2008 (Cochrane and Zingales 2009). There has not been actual deflation or risk of deflation threatening depression in the US that would justify unconventional monetary policy.

Chart I-4, Percent Change from Preceding Period in Prices for GDP Seasonally Adjusted at Annual Rates 1980-2013

Source: US Bureau of Economic Analysis

Chart I-5 provides percent change from preceding year in prices of GDP from 1929 to 2013. There are four consecutive years of declines of prices of GDP during the Great Depression: 3.8 percent in 1930, 9.9 percent in 1931, 11.4 percent in 1932 and 2.7 percent in 1933. There were two consecutive declines of 1.8 percent in 1938 and 1.2 percent in 1939. Prices of GDP fell 0.1 percent in 1949 after increasing 12.6 percent in 1946, 11.2 percent in 1947 and 5.6 percent in 1948, which is similar to experience with wars in other countries. There are no other negative changes of annual prices of GDP in 74 years from 1939 to 2013.

Chart I-5, Percent Change from Preceding Year in Prices for Gross Domestic Product 1930-2013

The producer price index of the US from 1947 to 2014 in Chart I-6 shows various periods of more rapid or less rapid inflation but no bumps. The major event is the decline in 2008 when risk aversion because of the global recession caused the collapse of oil prices from $148/barrel to less than $80/barrel with most other commodity prices also collapsing. The event had nothing in common with explanations of deflation but rather with the concentration of risk exposures in commodities after the decline of stock market indexes. Eventually, there was a flight to government securities because of the fears of insolvency of banks caused by statements supporting proposals for withdrawal of toxic assets from bank balance sheets in the Troubled Asset Relief Program (TARP), as explained by Cochrane and Zingales (2009). The bump in 2008 with decline in 2009 is consistent with the view that zero interest rates with subdued risk aversion induce carry trades into commodity futures.

Chart I-6, US, Producer Price Index, Finished Goods, NSA, 1947-2014

Source: US Bureau of Labor Statistics

Chart I-7 provides 12-month percentage changes of the producer price index from 1948 to 2014. The distinguishing event in Chart I-7 is the Great Inflation of the 1970s. The shape of the two-hump Bactrian camel of the 1970s resembles the double hump from 2007 to 2013.

Chart I-7, US, Producer Price Index, Finished Goods, 12-Month Percentage Change, NSA, 1948-2014

Source: US Bureau of Labor Statistics

Annual percentage changes of the producer price index from 1948 to 2013 are shown in Table I-1A. The producer price index fell 2.8 percent in 1949 following the adjustment to World War II and fell 0.6 percent in 1952 and 1.0 percent in 1953 around the Korean War. There are two other mild decline of 0.3 percent in 1959 and 0.3 percent in 1963. There are only few subsequent and isolated declines of the producer price index of 1.4 percent in 1986, 0.8 percent in 1998, 1.3 percent in 2002 and 2.6 percent in 2009. The decline of 2009 was caused by unwinding of carry trades in 2008 that had lifted oil prices to $140/barrel during deep global recession because of the panic of probable toxic assets in banks that would be removed with the Troubled Asset Relief Program (TARP) (Cochrane and Zingales 2009). There is no evidence in this history of 65 years of the US producer price index suggesting that there is frequent and persistent deflation shock requiring aggressive unconventional monetary policy. The design of such anti-deflation policy could provoke price and financial instability because of lags in effect of monetary policy, model errors, inaccurate forecasts and misleading analysis of current economic conditions.

Table I-1A, US, Annual PPI Inflation ∆% 1948-2013

Year	Annual ∆%
1948	8.0
1949	-2.8
1950	1.8
1951	9.2
1952	-0.6
1953	-1.0
1954	0.3
1955	0.3
1956	2.6
1957	3.8
1958	2.2
1959	-0.3
1960	0.9
1961	0.0
1962	0.3
1963	-0.3
1964	0.3
1965	1.8
1966	3.2
1967	1.1
1968	2.8
1969	3.8
1970	3.4
1971	3.1
1972	3.2
1973	9.1
1974	15.4
1975	10.6
1976	4.5
1977	6.4
1978	7.9
1979	11.2
1980	13.4
1981	9.2
1982	4.1
1983	1.6
1984	2.1
1985	1.0
1986	-1.4
1987	2.1
1988	2.5
1989	5.2
1990	4.9
1991	2.1
1992	1.2
1993	1.2
1994	0.6
1995	1.9
1996	2.7
1997	0.4
1998	-0.8
1999	1.8
2000	3.8
2001	2.0
2002	-1.3
2003	3.2
2004	3.6
2005	4.8
2006	3.0
2007	3.9
2008	6.3
2009	-2.6
2010	4.2
2011	6.0
2012	1.9
2013	1.2

Source: US Bureau of Labor Statistics

The producer price index excluding food and energy from 1973 to 2014, the first historical date of availability in the dataset of the Bureau of Labor Statistics (BLS), shows similarly dynamic behavior as the overall index, as shown in Chart I-8. There is no evidence of persistent deflation in the US PPI.

Chart I-8, US Producer Price Index, Finished Goods Excluding Food and Energy, NSA, 1973-2014

Source: US Bureau of Labor Statistics

Chart I-9 provides 12-month percentage rates of change of the finished goods index excluding food and energy. The dominating characteristic is the Great Inflation of the 1970s. The double hump illustrates how inflation may appear to be subdued and then returns with strength.

Chart I-9, US Producer Price Index, Finished Goods Excluding Food and Energy, 12-Month Percentage Change, NSA, 1974-2014

Source: US Bureau of Labor Statistics

The producer price index of energy goods from 1974 to 2014 is provided in Chart I-10. The first jump occurred during the Great Inflation of the 1970s analyzed in various comments of this blog (http://cmpassocregulationblog.blogspot.com/2012/06/rules-versus-discretionary-authorities.html http://cmpassocregulationblog.blogspot.com/2011/05/slowing-growth-global-inflation-great.html http://cmpassocregulationblog.blogspot.com/2011/04/new-economics-of-rose-garden-turned.html http://cmpassocregulationblog.blogspot.com/2011/03/is-there-second-act-of-us-great.html) and in Appendix I. There is relative stability of producer prices after 1986 with another jump and decline in the late 1990s into the early 2000s. The episode of commodity price increases during a global recession in 2008 could only have occurred with interest rates dropping toward zero, which stimulated the carry trade from zero interest rates to leveraged positions in commodity futures. Commodity futures exposures were dropped in the flight to government securities after Sep 2008. Commodity future exposures were created again when risk aversion diminished around Mar 2010 after the finding that US bank balance sheets did not have the toxic assets that were mentioned in proposing TARP in Congress (see Cochrane and Zingales 2009). Fluctuations in commodity prices and other risk financial assets originate in carry trade when risk aversion ameliorates. There are also fluctuations originating in shifts in preference for asset classes such as between commodities and equities.

Chart I-10, US, Producer Price Index, Finished Energy Goods, NSA, 1974-2014

Source: US Bureau of Labor Statistics

http://www.bls.gov/cpi/data.htm

Chart I-11 shows 12-month percentage changes of the producer price index of finished energy goods from 1975 to 2014. This index is only available after 1974 and captures only one of the humps of energy prices during the Great Inflation. Fluctuations in energy prices have occurred throughout history in the US but without provoking deflation. Two cases are the decline of oil prices in 2001 to 2002 that has been analyzed by Barsky and Kilian (2004) and the collapse of oil prices from over $140/barrel with shock of risk aversion to the carry trade in Sep 2008.

Chart I-11, US, Producer Price Index, Finished Energy Goods, 12-Month Percentage Change, NSA, 1974-2014

Source: US Bureau of Labor Statistics

Chart I-12 provides the consumer price index NSA from 1915 to 2014. The dominating characteristic is the increase in slope during the Great Inflation from the middle of the 1960s through the 1970s. There is long-term inflation in the US and no evidence of deflation risks.

Chart I-12, US, Consumer Price Index, NSA, 1915-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Chart I-13 provides 12-month percentage changes of the consumer price index from 1915 to 2014. The only episode of deflation after 1950 is in 2009, which is explained by the reversal of speculative commodity futures carry trades that were induced by interest rates driven to zero in a shock of monetary policy in 2008. The only persistent case of deflation is from 1930 to 1933, which has little if any relevance to the contemporary United States economy. There are actually three waves of inflation in the second half of the 1960s, in the mid-1970s and again in the late 1970s. Inflation rates then stabilized in a range with only two episodes above 5 percent.

Chart I-13, US, Consumer Price Index, All Items, 12- Month Percentage Change 1914-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Table I-2 provides annual percentage changes of United States consumer price inflation from 1914 to 2013. There have been only cases of annual declines of the CPI after wars: (1)

World War I minus 10.5 percent in 1921 and minus 6.1 percent in 1922 following cumulative increases of 83.5 percent in four years from 1917 to 1920 at the average of 16.4 percent per year
World War II: minus 1.2 percent in 1949 following cumulative 33.9 percent in three years from 1946 to 1948 at average 10.2 percent per year
Minus 0.4 percent in 1955 two years after the end of the Korean War
Minus 0.4 percent in 2009.
The decline of 0.4 percent in 2009 followed increase of 3.8 percent in 2008 and is explained by the reversal of speculative carry trades into commodity futures that were created in 2008 as monetary policy rates were driven to zero. The reversal occurred after misleading statement on toxic assets in banks in the proposal for TARP (Cochrane and Zingales 2009).

There were declines of 1.7 percent in both 1927 and 1928 during the episode of revival of rules of the gold standard. The only persistent deflationary period since 1914 was during the Great Depression in the years from 1930 to 1933 and again in 1938-1939. Fear of deflation on the basis of that experience does not justify unconventional monetary policy of zero interest rates that has failed to stop deflation in Japan. Financial repression causes far more adverse effects on allocation of resources by distorting the calculus of risk/returns than alleged employment-creating effects or there would not be current recovery without jobs and hiring after zero interest rates since Dec 2008 and intended now forever in a self-imposed forecast growth and employment mandate of monetary policy. Unconventional monetary policy drives wide swings in allocations of positions into risk financial assets that generate instability instead of intended pursuit of prosperity without inflation. There is insufficient knowledge and imperfect tools to maintain the gap of actual relative to potential output constantly at zero while restraining inflation in an open interval of (1.99, 2.0). Symmetric targets appear to have been abandoned in favor of a self-imposed single jobs mandate of easing monetary policy even with the economy growing at or close to potential output that is actually a target of growth forecast. The impact on the overall economy and the financial system of errors of policy are magnified by large-scale policy doses of trillions of dollars of quantitative easing and zero interest rates. The US economy has been experiencing financial repression as a result of negative real rates of interest during nearly a decade and programmed in monetary policy statements until 2015 or, for practical purposes, forever. The essential calculus of risk/return in capital budgeting and financial allocations has been distorted. If economic perspectives are doomed until 2015 such as to warrant zero interest rates and open-ended bond-buying by “printing” digital bank reserves (http://cmpassocregulationblog.blogspot.com/2010/12/is-fed-printing-money-what-are.html; see Shultz et al 2012), rational investors and consumers will not invest and consume until just before interest rates are likely to increase. Monetary policy statements on intentions of zero interest rates for another three years or now virtually forever discourage investment and consumption or aggregate demand that can increase economic growth and generate more hiring and opportunities to increase wages and salaries. The doom scenario used to justify monetary policy accentuates adverse expectations on discounted future cash flows of potential economic projects that can revive the economy and create jobs. If it were possible to project the future with the central tendency of the monetary policy scenario and monetary policy tools do exist to reverse this adversity, why the tools have not worked before and even prevented the financial crisis? If there is such thing as “monetary policy science”, why it has such poor record and current inability to reverse production and employment adversity? There is no excuse of arguing that additional fiscal measures are needed because they were deployed simultaneously with similar ineffectiveness. Jon Hilsenrath, writing on “New view into Fed’s response to crisis,” on Feb 21, 2014, published in the Wall Street Journal (http://online.wsj.com/news/articles/SB10001424052702303775504579396803024281322?mod=WSJ_hp_LEFTWhatsNewsCollection), analyzes 1865 pages of transcripts of eight formal and six emergency policy meetings at the Fed in 2008 (http://www.federalreserve.gov/monetarypolicy/fomchistorical2008.htm). If there were an infallible science of central banking, models and forecasts would provide accurate information to policymakers on the future course of the economy in advance. Such forewarning is essential to central bank science because of the long lag between the actual impulse of monetary policy and the actual full effects on income and prices many months and even years ahead (Romer and Romer 2004, Friedman 1961, 1953, Culbertson 1960, 1961, Batini and Nelson 2002). The transcripts of the Fed meetings in 2008 (http://www.federalreserve.gov/monetarypolicy/fomchistorical2008.htm) analyzed by Jon Hilsenrath demonstrate that Fed policymakers frequently did not understand the current state of the US economy in 2008 and much less the direction of income and prices. The conclusion of Friedman (1953) that monetary impulses increase financial and economic instability because of lags in anticipating needs of policy, taking policy decisions and effects of decisions. This a fortiori true when untested unconventional monetary policy in gargantuan doses shocks the economy and financial markets.

Table I-2, US, Annual CPI Inflation ∆% 1914-2013

Year	Annual
1914	1.0
1915	1.0
1916	7.9
1917	17.4
1918	18.0
1919	14.6
1920	15.6
1921	-10.5
1922	-6.1
1923	1.8
1924	0.0
1925	2.3
1926	1.1
1927	-1.7
1928	-1.7
1929	0.0
1930	-2.3
1931	-9.0
1932	-9.9
1933	-5.1
1934	3.1
1935	2.2
1936	1.5
1937	3.6
1938	-2.1
1939	-1.4
1940	0.7
1941	5.0
1942	10.9
1943	6.1
1944	1.7
1945	2.3
1946	8.3
1947	14.4
1948	8.1
1949	-1.2
1950	1.3
1951	7.9
1952	1.9
1953	0.8
1954	0.7
1955	-0.4
1956	1.5
1957	3.3
1958	2.8
1959	0.7
1960	1.7
1961	1.0
1962	1.0
1963	1.3
1964	1.3
1965	1.6
1966	2.9
1967	3.1
1968	4.2
1969	5.5
1970	5.7
1971	4.4
1972	3.2
1973	6.2
1974	11.0
1975	9.1
1976	5.8
1977	6.5
1978	7.6
1979	11.3
1980	13.5
1981	10.3
1982	6.2
1983	3.2
1984	4.3
1985	3.6
1986	1.9
1987	3.6
1988	4.1
1989	4.8
1990	5.4
1991	4.2
1992	3.0
1993	3.0
1994	2.6
1995	2.8
1996	3.0
1997	2.3
1998	1.6
1999	2.2
2000	3.4
2001	2.8
2002	1.6
2003	2.3
2004	2.7
2005	3.4
2006	3.2
2007	2.8
2008	3.8
2009	-0.4
2010	1.6
2011	3.2
2012	2.1
2013	1.5

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Chart I-14 provides the consumer price index excluding food and energy from 1957 to 2014. There is long-term inflation in the US without episodes of persistent deflation.

Chart I-14, US, Consumer Price Index Excluding Food and Energy, NSA, 1957-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Chart I-15 provides 12-month percentage changes of the consumer price index excluding food and energy from 1958 to 2014. There are three waves of inflation in the 1970s during the Great Inflation. There is no episode of deflation.

Chart I-15, US, Consumer Price Index Excluding Food and Energy, 12-Month Percentage Change, NSA, 1958-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

The consumer price index of housing is provided in Chart I-16. There was also acceleration during the Great Inflation of the 1970s. The index flattens after the global recession in IVQ2007 to IIQ2009. Housing prices collapsed under the weight of construction of several times more housing than needed. Surplus housing originated in subsidies and artificially low interest rates in the shock of unconventional monetary policy in 2003 to 2004 in fear of deflation.

Chart I-16, US, Consumer Price Index Housing, NSA, 1967-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Chart I-17 provides 12-month percentage changes of the housing CPI. The Great Inflation also had extremely high rates of housing inflation. Housing is considered as potential hedge of inflation.

Chart I-17, US, Consumer Price Index, Housing, 12- Month Percentage Change, NSA, 1968-2013

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

ID Current US Inflation. Consumer price inflation has fluctuated in recent months. Table I-3 provides 12-month consumer price inflation in Mar 2014 and annual equivalent percentage changes for the months of Jan 2014 to Mar 2014 of the CPI and major segments. The final column provides inflation from Feb 2014 to Mar 2014. CPI inflation in the 12 months ending in Mar 2014 reached 1.5 percent, the annual equivalent rate Jan 2014 to Mar 2014 was 1.6 percent in the new episode of carry trades from zero interest rates to commodities exposures and the monthly inflation rate of 0.2 percent annualizes at 2.4 percent with oscillating carry trades at the margin. These inflation rates fluctuate in accordance with inducement of risk appetite or frustration by risk aversion of carry trades from zero interest rates to commodity futures. At the margin, the decline in commodity prices in sharp recent risk aversion in commodities markets caused lower inflation worldwide (with return in some countries in Dec 2012 and Jan-Feb 2013) that followed a jump in Aug-Sep 2012 because of the relaxed risk aversion resulting from the bond-buying program of the European Central Bank or Outright Monetary Transactions (OMT) (http://www.ecb.int/press/pr/date/2012/html/pr120906_1.en.html). Carry trades moved away from commodities into stocks with resulting weaker commodity prices and stronger equity valuations. There is reversal of exposures in commodities but with preferences of equities by investors. With zero interest rates, commodity prices would increase again in an environment of risk appetite, as shown in inflation in Jan 2014-Mar 2014. Excluding food and energy, CPI inflation was 1.7 percent in the 12 months ending in Mar 2014 and 1.6 percent in annual equivalent in Jan 2014 to Mar 2014. There is no deflation in the US economy that could justify further quantitative easing, which is now open-ended or forever with zero interest rates and potential tapering bond-buying by the central bank, or QE→∞, even if the economy grows back to potential. Financial repression of zero interest rates is now intended as a permanent distortion of resource allocation by clouding risk/return decisions, preventing the economy from expanding along its optimal growth path. Consumer food prices in the US have risen 1.7 percent in 12 months ending in Mar 2014 and at 3.7 percent in annual equivalent in Jan 2014 to Mar 2014. Monetary policies stimulating carry trades of commodities futures that increase prices of food constitute a highly regressive tax on lower income families for whom food is a major portion of the consumption basket especially with wage increases below inflation in a recovery without hiring (http://cmpassocregulationblog.blogspot.com/2014/04/global-financial-instability-recovery.html) and without jobs (http://cmpassocregulationblog.blogspot.com/2014/04/interest-rate-risks-twenty-eight.html). Energy consumer prices increased 0.4 percent in 12 months, changed at 0.0 percent in annual equivalent in Jan 2014 to Mar 2014 and decreased 0.1 percent in Mar 2014 or at minus 1.2 percent in annual equivalent. Waves of inflation are induced by carry trades from zero interest rates to commodity futures, which are unwound and repositioned during alternating risk aversion and risk appetite originating in the European debt crisis and increasingly in growth, soaring debt and politics in China. For lower income families, food and energy are a major part of the family budget. Inflation is not persistently low or threatening deflation in annual equivalent in Jan 2014 to Mar 2014 in any of the categories in Table I-2 but simply reflecting waves of inflation originating in carry trades. Carry trades from zero interest rates induce commodity futures positions with episodes of risk aversion causing fluctuations determine an upward trend of prices.

Table I-3, US, Consumer Price Index Percentage Changes 12 months NSA and Annual Equivalent ∆%

	% RI	∆% 12 Months Mar 2014/Mar 2013 NSA	∆% Annual Equivalent Jan 2014 to Mar 2014 SA	∆% Mar 2014/Mar 2014 SA
CPI All Items	100.000	1.5	1.6	0.2
CPI ex Food and Energy	76.845	1.7	1.6	0.2
Food	13.890	1.7	3.7	0.4
Food at Home	8.207	1.4	4.5	0.5
Food Away from Home	5.682	2.3	2.8	0.3
Energy	9.266	0.4	0.0	-0.1
Gasoline	5.065	-4.7	-16.3	-1.7
Electricity	2.911	5.3	11.3	1.1
Commodities less Food and Energy	19.596	-0.3	-0.8	0.0
New Vehicles	3.549	0.2	-0.8	0.0
Used Cars and Trucks	1.655	0.1	-0.8	0.4
Medical Care Commodities	1.723	1.3	3.2	-0.3
Apparel	3.386	0.5	-1.2	0.3
Services Less Energy Services	57.249	2.3	2.8	0.3
Shelter	31.977	2.7	3.2	0.3
Rent of Primary Residence	6.952	2.9	2.8	0.3
Owner’s Equivalent Rent of Residences	23.814	2.6	2.8	0.3
Transportation Services	5.531	1.4	2.4	0.2
Medical Care Services	5.872	2.4	2.8	0.3

% RI: Percent Relative Importance

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

The weights of the CPI, US city average for all urban consumers representing about 87 percent of the US population (http://www.bls.gov/cpi/cpiovrvw.htm#item1), are shown in Table I-4 with the BLS update for Dec 2012 (http://www.bls.gov/cpi/cpiri2012.pdf). Housing has a weight of 41.021 percent. The combined weight of housing and transportation is 57.867 percent or more than one-half of consumer expenditures of all urban consumers. The combined weight of housing, transportation and food and beverages is 73.128 percent of the US CPI. Table I-3 provides relative importance of key items in Mar 2014.

Table I-4, US, Relative Importance, 2009-2010 Weights, of Components in the Consumer Price Index, US City Average, Dec 2012

All Items	100.000
Food and Beverages	15.261
Food	14.312
Food at home	8.898
Food away from home	5.713
Housing	41.021
Shelter	31.681
Rent of primary residence	6.545
Owners’ equivalent rent	22.622
Apparel	3.564
Transportation	16.846
Private Transportation	15.657
New vehicles	3.189
Used cars and trucks	1.844
Motor fuel	5.462
Gasoline	5.274
Medical Care	7.163
Medical care commodities	1.714
Medical care services	5.448
Recreation	5.990
Education and Communication	6.779
Other Goods and Services	3.376

Refers to all urban consumers, covering approximately 87 percent of the US population (see http://www.bls.gov/cpi/cpiovrvw.htm#item1). Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/cpiri2011.pdf http://www.bls.gov/cpi/cpiriar.htm http://www.bls.gov/cpi/cpiri2012.pdf

Chart I-18 provides the US consumer price index for housing from 2001 to 2014. Housing prices rose sharply during the decade until the bump of the global recession and increased again in 2011-2012 with some stabilization in 2013. There is renewed increase in 2014. The CPI excluding housing would likely show much higher inflation. The commodity carry trades resulting from unconventional monetary policy have compressed income remaining after paying for indispensable shelter.

Chart I-18, US, Consumer Price Index, Housing, NSA, 2001-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/data.htm

Chart I-19 provides 12-month percentage changes of the housing CPI. Percentage changes collapsed during the global recession but have been rising into positive territory in 2011 and 2012-2013 but with the rate declining and then increasing into 2014.

Chart I-19, US, Consumer Price Index, Housing, 12-Month Percentage Change, NSA, 2001-2014

Source: US Bureau of Labor Statistics

http://www.bls.gov/cpi/data.htm

There have been waves of consumer price inflation in the US in 2011 and into 2012 (Section IA and earlier at http://cmpassocregulationblog.blogspot.com/2014/03/interest-rate-risks-world-inflation.html) that are illustrated in Table I-5. The first wave occurred in Jan-Apr 2011 and was caused by the carry trade of commodity prices induced by unconventional monetary policy of zero interest rates. Cheap money at zero opportunity cost in environment of risk appetite was channeled into financial risk assets, causing increases in commodity prices. The annual equivalent rate of increase of the all-items CPI in Jan-Apr 2011 was 4.9 percent and the CPI excluding food and energy increased at annual equivalent rate of 2.1 percent. The second wave occurred during the collapse of the carry trade from zero interest rates to exposures in commodity futures because of risk aversion in financial markets created by the sovereign debt crisis in Europe. The annual equivalent rate of increase of the all-items CPI dropped to 2.4 percent in May-Jun 2011 while the annual equivalent rate of the CPI excluding food and energy increased at 3.0 percent. In the third wave in Jul-Sep 2011, annual equivalent CPI inflation rose to 3.2 percent while the core CPI increased at 2.4 percent. The fourth wave occurred in the form of increase of the CPI all-items annual equivalent rate to 1.2 percent in Oct-Nov 2011 with the annual equivalent rate of the CPI excluding food and energy remaining at 2.4 percent. The fifth wave occurred in Dec 2011 to Jan 2012 with annual equivalent headline inflation of 1.8 percent and core inflation of 2.4 percent. In the sixth wave, headline CPI inflation increased at annual equivalent 2.8 percent in Feb-Apr 2012 and 2.0 percent for the core CPI. The seventh wave in May-Jul occurred with annual equivalent inflation of minus 0.4 percent for the headline CPI in May-Jul 2012 and 2.0 percent for the core CPI. The eighth wave is with annual equivalent inflation of 6.2 percent in Aug-Sep 2012 but 4.9 percent including Oct. In the ninth wave, annual equivalent inflation in Nov 2012 was minus 2.4 percent under the new shock of risk aversion and 0.0 percent in Dec 2012 with annual equivalent of minus 0.4 percent in Nov 2012-Jan 2013 and 1.6 percent for the core CPI. In the tenth wave, annual equivalent of the headline CPI was 7.4 percent in Feb 2013 and 2.4 percent for the core CPI. In the eleventh wave, annual equivalent was minus 2.4 percent in Mar-Apr 2013 and 1.2 percent for the core index. In the twelfth wave, annual equivalent inflation was 2.2 percent in May-Sep 2013 and 1.7 percent for the core CPI. In the thirteenth wave, annual equivalent CPI inflation in Oct-Nov 2013 was 0.6 percent and 1.8 percent for the core CPI. Inflation returned in the fourteenth wave at 1.8 percent for the headline CPI index and 1.5 percent for the core CPI in annual equivalent for Dec 2013 to Mar 2014. The conclusion is that inflation accelerates and decelerates in unpredictable fashion because of shocks or risk aversion and portfolio reallocations in carry trades from zero interest rates to commodity derivatives.

Table I-5, US, Headline and Core CPI Inflation Monthly SA and 12 Months NSA ∆%

	All Items SA Month	All Items NSA 12 month	Core SA Month	Core NSA 12 months
Mar 2014	0.2	1.5	0.2	1.7
Feb	0.1	1.1	0.1	1.6
Jan	0.1	1.6	0.1	1.6
Dec 2013	0.2	1.5	0.1	1.7
AE ∆% Dec-Mar	1.8		1.5
Nov	0.1	1.2	0.2	1.7
Oct	0.0	1.0	0.1	1.7
AE ∆% Oct-Nov	0.6		1.8
Sep	0.1	1.2	0.1	1.7
Aug	0.1	1.5	0.1	1.8
Jul	0.2	2.0	0.2	1.7
Jun	0.3	1.8	0.2	1.6
May	0.2	1.4	0.1	1.7
AE ∆% May-Sep	2.2		1.7
Apr	-0.2	1.1	0.1	1.7
Mar	-0.2	1.5	0.1	1.9
AE ∆% Mar-Apr	-2.4		1.2
Feb	0.6	2.0	0.2	2.0
AE ∆% Feb	7.4		2.4
Jan	0.1	1.6	0.2	1.9
Dec 2012	0.0	1.7	0.1	1.9
Nov	-0.2	1.8	0.1	1.9
AE ∆% Nov-Jan	-0.4		1.6
Oct	0.2	2.2	0.2	2.0
Sep	0.5	2.0	0.2	2.0
Aug	0.5	1.7	0.1	1.9
AE ∆% Aug-Oct	4.9		2.0
Jul	0.0	1.4	0.1	2.1
Jun	0.0	1.7	0.2	2.2
May	-0.1	1.7	0.2	2.3
AE ∆% May-Jul	-0.4		2.0
Apr	0.2	2.3	0.2	2.3
Mar	0.3	2.7	0.2	2.3
Feb	0.2	2.9	0.1	2.2
AE ∆% Feb-Apr	2.8		2.0
Jan	0.3	2.9	0.2	2.3
Dec 2011	0.0	3.0	0.2	2.2
AE ∆% Dec-Jan	1.8		2.4
Nov	0.2	3.4	0.2	2.2
Oct	0.0	3.5	0.2	2.1
AE ∆% Oct-Nov	1.2		2.4
Sep	0.2	3.9	0.1	2.0
Aug	0.3	3.8	0.3	2.0
Jul	0.3	3.6	0.2	1.8
AE ∆% Jul-Sep	3.2		2.4
Jun	0.0	3.6	0.2	1.6
May	0.4	3.6	0.3	1.5
AE ∆% May-Jun	2.4		3.0
Apr	0.5	3.2	0.2	1.3
Mar	0.5	2.7	0.1	1.2
Feb	0.3	2.1	0.2	1.1
Jan	0.3	1.6	0.2	1.0
AE ∆% Jan-Apr	4.9		2.1
Dec 2010	0.4	1.5	0.1	0.8
Nov	0.2	1.1	0.1	0.8
Oct	0.3	1.2	0.0	0.6
Sep	0.1	1.1	0.0	0.8
Aug	0.2	1.1	0.1	0.9
Jul	0.2	1.2	0.1	0.9
Jun	0.0	1.1	0.1	0.9
May	0.0	2.0	0.1	0.9
Apr	0.0	2.2	0.0	0.9
Mar	0.0	2.3	0.0	1.1
Feb	-0.1	2.1	0.1	1.3
Jan	0.1	2.6	-0.2	1.6

Note: Core: excluding food and energy; AE: annual equivalent

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

The behavior of the US consumer price index NSA from 2001 to 2014 is provided in Chart I-20. Inflation in the US is very dynamic without deflation risks that would justify symmetric inflation targets. The hump in 2008 originated in the carry trade from interest rates dropping to zero into commodity futures. There is no other explanation for the increase of the Cushing OK Crude Oil Future Contract 1 from $55.64/barrel on Jan 9, 2007 to $145.29/barrel on July 3, 2008 during deep global recession, collapsing under a panic of flight into government obligations and the US dollar to $37.51/barrel on Feb 13, 2009 and then rising by carry trades to $113.93/barrel on Apr 29, 2012, collapsing again and then recovering again to $105.23/barrel, all during mediocre economic recovery with peaks and troughs influenced by bouts of risk appetite and risk aversion (data from the US Energy Information Administration EIA, http://www.eia.gov/). The unwinding of the carry trade with the TARP announcement of toxic assets in banks channeled cheap money into government obligations (see Cochrane and Zingales 2009).

Chart I-20, US, Consumer Price Index, NSA, 2001-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

Chart I-21 provides 12-month percentage changes of the consumer price index from 2001 to 2014. There was no deflation or threat of deflation from 2008 into 2009. Commodity prices collapsed during the panic of toxic assets in banks. When stress tests in 2009 revealed US bank balance sheets in much stronger position, cheap money at zero opportunity cost exited government obligations and flowed into carry trades of risk financial assets. Increases in commodity prices drove again the all items CPI with interruptions during risk aversion originating in multiple fears but especially from the sovereign debt crisis of Europe.

Chart I-21, US, Consumer Price Index, 12-Month Percentage Change, NSA, 2001-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

The trend of increase of the consumer price index excluding food and energy in Chart I-22 does not reveal any threat of deflation that would justify symmetric inflation targets. There are mild oscillations in a neat upward trend.

Chart I-22, US, Consumer Price Index Excluding Food and Energy, NSA, 2001-2014

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

Chart I-23 provides 12-month percentage change of the consumer price index excluding food and energy. Past-year rates of inflation fell toward 1 percent from 2001 into 2003 because of the recession and the decline of commodity prices beginning before the recession with declines of real oil prices. Near zero interest rates with fed funds at 1 percent between Jun 2003 and Jun 2004 stimulated carry trades of all types, including in buying homes with subprime mortgages in expectation that low interest rates forever would increase home prices permanently, creating the equity that would permit the conversion of subprime mortgages into creditworthy mortgages (Gorton 2009EFM; see http://cmpassocregulationblog.blogspot.com/2011/07/causes-of-2007-creditdollar-crisis.html). Inflation rose and then collapsed during the unwinding of carry trades and the housing debacle of the global recession. Carry trades into 2011 and 2012 gave a new impulse to CPI inflation, all items and core. Symmetric inflation targets destabilize the economy by encouraging hunts for yields that inflate and deflate financial assets, obscuring risk/return decisions on production, investment, consumption and hiring.

Chart I-23, US, Consumer Price Index Excluding Food and Energy, 12-Month Percentage Change, NSA, 2001-2013

Source: US Bureau of Labor Statistics

Headline and core producer price indexes are in Table I-6. The headline PPI SA decreased 0.1 percent in Mar 2014 and increased 1.7 percent NSA in the 12 months ending in Mar 2014. The core PPI SA increased 0.1 percent in Mar 2014 and rose 1.7 percent in 12 months. Analysis of annual equivalent rates of change shows inflation waves similar to those worldwide. In the first wave, the absence of risk aversion from the sovereign risk crisis in Europe motivated the carry trade from zero interest rates into commodity futures that caused the average equivalent rate of 10.4 percent in the headline PPI in Jan-Apr 2011 and 3.7 percent in the core PPI. In the second wave, commodity futures prices collapsed in Jun 2011 with the return of risk aversion originating in the sovereign risk crisis of Europe. The annual equivalent rate of headline PPI inflation collapsed to 1.2 percent in May-Jun 2011 but the core annual equivalent inflation rate was higher at 2.4 percent. In the third wave, headline PPI inflation resuscitated with annual equivalent at 4.1 percent in Jul-Sep 2011 and core PPI inflation at 3.7 percent. Core PPI inflation was persistent throughout 2011, jumping from annual equivalent at 2.0 percent in the first four months of 2010 to 3.0 percent in 12 months ending in Dec 2011. Unconventional monetary policy is based on the proposition that core rates reflect more fundamental inflation and are thus better predictors of the future. In practice, the relation of core and headline inflation is as difficult to predict as future inflation (see IIID Supply Shocks in http://cmpassocregulationblog.blogspot.com/2011/05/slowing-growth-global-inflation-great.html). In the fourth wave, risk aversion originating in the lack of resolution of the European debt crisis caused unwinding of carry trades with annual equivalent headline PPI inflation of minus 0.4 percent in Oct-Dec 2011 and 2.4 percent in the core annual equivalent. In the fifth wave from Jan to Mar 2012, annual equivalent inflation was 2.8 percent for the headline index but 3.2 percent for the core index excluding food and energy. In the sixth wave, annual equivalent inflation in Apr-May 2012 during renewed risk aversion was minus 4.1 percent for the headline PPI and 1.8 percent for the core. In the seventh wave, continuing risk aversion caused reversal of carry trades into commodity exposures with annual equivalent headline inflation of 0.6 percent in Jun-Jul 2012 while core PPI inflation was at annual equivalent 3.7 percent. In the eighth wave, relaxed risk aversion because of the announcement of the impaired bond buying program or Outright Monetary Transactions (OMT) of the European Central Bank (http://www.ecb.int/press/pr/date/2012/html/pr120906_1.en.html) induced carry trades that drove annual equivalent inflation of producer prices of the United States at 12.7 percent in Aug-Sep 2012 and 0.6 percent in the core index. In the ninth wave, renewed risk aversion caused annual equivalent inflation of minus 2.8 percent in Oct 2011-Dec 2012 in the headline index and 0.8 percent in the core index. In the tenth wave, annual equivalent inflation was 6.2 percent in the headline index in Jan-Feb 2013 and 2.4 percent in the core index. In the eleventh wave, annual equivalent inflation was minus 6.4 percent in Mar-Apr 2012 and 1.2 percent for the core index. In the twelfth wave, annual equivalent inflation returned at 4.0 percent in May-Aug 2013 and 0.9 percent in the core index. In the thirteenth wave, portfolio reallocations away from commodities and into equities reversed commodity carry trade with annual equivalent inflation of 0.0 percent in Sep-Nov 2013 in the headline PPI and 1.2 percent in the core. In the fourteenth wave, annual equivalent inflation returned at 5.3 percent annual equivalent for the headline index in Dec 2013-Feb 2014 and 3.7 percent for the core index. In the fifteenth wave, annual equivalent inflation was minus 1.2 percent for the general PPI index in Mar 2014 and 1.2 percent for the core PPI index. It is almost impossible to forecast PPI inflation and its relation to CPI inflation. “Inflation surprise” by monetary policy could be proposed to climb along a downward sloping Phillips curve, resulting in higher inflation but lower unemployment (see Kydland and Prescott 1977, Barro and Gordon 1983 and past comments of this blog http://cmpassocregulationblog.blogspot.com/2011/05/slowing-growth-global-inflation-great.html http://cmpassocregulationblog.blogspot.com/2011/04/new-economics-of-rose-garden-turned.html http://cmpassocregulationblog.blogspot.com/2011/03/is-there-second-act-of-us-great.html http://cmpassocregulationblog.blogspot.com/2012/06/rules-versus-discretionary-authorities.html). The architects of monetary policy would require superior inflation forecasting ability compared to forecasting naivety by everybody else. In practice, we are all naïve in forecasting inflation and other economic variables and events.

Table I-6, US, Headline and Core PPI Inflation Monthly SA and 12-Month NSA ∆%

	Finished Goods SA Month	Finished Goods NSA 12 months	Finished Core SA Month	Finished Core NSA 12 months
Mar 2014	-0.1	1.7	0.1	1.7
AE ∆% Mar	-1.2		1.2
Feb	0.4	1.3	0.1	1.7
Jan	0.6	1.5	0.5	1.7
Dec 2013	0.3	1.2	0.3	1.4
AE ∆% Dec-Feb	5.3		3.7
Nov	0.0	0.8	0.2	1.3
Oct	0.2	0.3	0.0	1.2
Sep	-0.2	0.3	0.1	1.2
AE ∆% Sep-Nov	0.0		1.2
Aug	0.3	1.3	0.0	1.2
Jul	0.0	2.1	0.1	1.3
Jun	0.4	2.3	0.1	1.6
May	0.6	1.6	0.1	1.7
AE ∆% May-Aug	4.0		0.9
Apr	-0.6	0.5	0.1	1.7
Mar	-0.5	1.1	0.1	1.7
AE ∆% Mar-Apr	-6.4		1.2
Feb	0.6	1.8	0.2	1.8
Jan	0.4	1.5	0.2	1.8
AE ∆% Jan-Feb	6.2		2.4
Dec 2012	-0.2	1.4	0.1	2.1
Nov	-0.6	1.5	0.1	2.2
Oct	0.1	2.3	0.0	2.2
AE ∆% Oct-Dec	-2.8		0.8
Sep	0.9	2.1	0.0	2.4
Aug	1.1	1.9	0.1	2.6
AE ∆% Aug-Sep	12.7		0.6
Jul	0.2	0.5	0.5	2.6
Jun	-0.1	0.7	0.1	2.6
AE ∆% Jun-Jul	0.6		3.7
May	-0.6	0.6	0.1	2.7
Apr	-0.1	1.8	0.2	2.7
AE ∆% Apr-May	-4.1		1.8
Mar	0.1	2.8	0.2	2.9
Feb	0.3	3.4	0.2	3.1
Jan	0.3	4.1	0.4	3.1
AE ∆% Jan-Mar	2.8		3.2
Dec 2011	-0.2	4.7	0.3	3.0
Nov	0.3	5.6	0.1	3.0
Oct	-0.2	5.8	0.2	2.9
AE ∆% Oct-Dec	-0.4		2.4
Sep	0.9	7.0	0.3	2.8
Aug	-0.3	6.6	0.1	2.7
Jul	0.4	7.1	0.5	2.7
AE ∆% Jul-Sep	4.1		3.7
Jun	-0.2	6.9	0.3	2.3
May	0.4	7.1	0.1	2.1
AE ∆% May-Jun	1.2		2.4
Apr	0.8	6.6	0.3	2.3
Mar	0.6	5.6	0.3	2.0
Feb	1.1	5.4	0.2	1.8
Jan	0.8	3.6	0.4	1.6
AE ∆% Jan-Apr	10.4		3.7
Dec 2010	0.8	3.8	0.2	1.4
Nov	0.4	3.4	0.0	1.2
Oct	0.8	4.3	-0.1	1.6
Sep	0.4	3.9	0.2	1.6
Aug	0.4	3.3	0.1	1.3
Jul	0.2	4.1	0.1	1.5
Jun	-0.3	2.7	0.1	1.1
May	0.0	5.1	0.3	1.3
Apr	-0.1	5.4	0.0	0.9
Mar	0.6	5.9	0.2	0.9
Feb	-0.5	4.2	0.1	1.0
Jan	1.0	4.5	0.2	1.0

Note: Core: excluding food and energy; AE: annual equivalent

Source: US Bureau of Labor Statistics http://www.bls.gov/ppi/data.htm

The US producer price index NSA from 2000 to 2014 is shown in Chart I-24. There are two episodes of decline of the PPI during recessions in 2001 and in 2008. Barsky and Kilian (2004) consider the 2001 episode as one in which real oil prices were declining when recession began. Recession and the fall of commodity prices instead of generalized deflation explain the behavior of US inflation in 2008.

Chart I-24, US, Producer Price Index, NSA, 2000-2014

Source: US Bureau of Labor Statistics

Twelve-month percentage changes of the PPI NSA from 2000 to 2014 are shown in Chart I-25. It may be possible to forecast trends a few months in the future under adaptive expectations but turning points are almost impossible to anticipate especially when related to fluctuations of commodity prices in response to risk aversion. In a sense, monetary policy has been tied to behavior of the PPI in the negative 12-month rates in 2001 to 2003 and then again in 2009 to 2010. Monetary policy following deflation fears caused by commodity price fluctuations would introduce significant volatility and risks in financial markets and eventually in consumption and investment.

Chart I-25, US, Producer Price Index, 12-Month Percentage Change NSA, 2000-2014

Source: US Bureau of Labor Statistics

The US PPI excluding food and energy from 2000 to 2014 is shown in Chart I-26. There is here again a smooth trend of inflation instead of prolonged deflation as in Japan.

Chart I-26, US, Producer Price Index Excluding Food and Energy, NSA, 2000-2014

Source: US Bureau of Labor Statistics

Twelve-month percentage changes of the producer price index excluding food and energy are shown in Chart I-27. Fluctuations replicate those in the headline PPI. There is an evident trend of increase of 12 months rates of core PPI inflation in 2011 but lower rates in 2012-2014.

Chart I-27, US, Producer Price Index Excluding Food and Energy, NSA, 12-Month Percentage Changes, 2000-2014

Source: US Bureau of Labor Statistics

The US producer price index of energy goods from 2000 to 2014 is in Chart I-28. There is a clear upward trend with fluctuations that would not occur under persistent deflation.

Chart I-28, US, Producer Price Index Finished Energy Goods, NSA, 2000-2014

Source: US Bureau of Labor Statistics

Chart I-29 provides 12-month percentage changes of the producer price index of energy goods from 2000 to 2014. Barsky and Kilian (2004) relate the episode of declining prices of energy goods in 2001 to 2002 to the analysis of decline of real oil prices. Interest rates dropping to zero during the global recession in 2008 induced carry trades that explain the rise of the PPI of energy goods toward 30 percent. Bouts of risk aversion with policy interest rates held close to zero explain the fluctuations in the 12-month rates of the PPI of energy goods in the expansion phase of the economy. Symmetric inflation targets induce significant instability in inflation and interest rates with adverse effects on financial markets and the overall economy.

Chart I-29, US, Producer Price Index Energy Goods, 12-Month Percentage Change, NSA, 2000-2014

Source: US Bureau of Labor Statistics

The Bureau of Labor Statistics (BLS) is enhancing the producer price index of the US with the final demand producer price index (FD PPI) beginning in Jan 2014 (http://www.bls.gov/ppi/fdidtransition.htm):

“Effective with the January 2014 Producer Price Index (PPI) data release in February 2014, BLS transitioned from the Stage of Processing (SOP) to the Final Demand-Intermediate Demand (FD-ID) aggregation system. This shift resulted in significant changes to the PPI news release, as well as other documents available from PPI. The transition to the FD-ID system was the culmination of a long-standing PPI objective to improve the current SOP aggregation system by incorporating PPIs for services, construction, government purchases, and exports. In comparison to the SOP system, the FD-ID system more than doubled PPI coverage of the United States economy to over 75 percent of in-scope domestic production. The FD-ID system was first introduced as a set of experimental indexes in January 2011. Nearly all new FD-ID goods, services, and construction indexes provide historical data back to either November 2009 or April 2010, while the indexes for goods that correspond with the historical SOP indexes go back to the 1970s or earlier.”

Headline and core final demand producer price indexes are in Table I-6A. The headline FD PPI SA increased 0.5 percent in Mar 2014 and increased 1.4 percent NSA in the 12 months ending in Mar 2014. The core FD PPI SA increased 0.6 percent in Mar 2014 and rose 1.4 percent in 12 months. Analysis of annual equivalent rates of change shows inflation waves similar to those worldwide. In the first wave, the absence of risk aversion from the sovereign risk crisis in Europe motivated the carry trade from zero interest rates into commodity futures that caused the average equivalent rate of 7.1 percent in the headline FD PPI in Jan-Apr 2011 and 4.9 percent in the core FD PPI. In the second wave, commodity futures prices collapsed in Jun 2011 with the return of risk aversion originating in the sovereign risk crisis of Europe. The annual equivalent rate of headline FD PPI inflation collapsed to 2.4 percent in May-Jun 2011 but the core annual equivalent inflation rate was lower at 1.8 percent. In the third wave, headline FD PPI inflation resuscitated with annual equivalent at 3.2 percent in Jul-Sep 2011 and core PPI inflation at 3.2 percent. Core FD PPI inflation was persistent throughout 2011, from annual equivalent at 4.9 percent in the first four months of 2011 to 2.6 percent in 12 months ending in Dec 2011. Unconventional monetary policy is based on the proposition that core rates reflect more fundamental inflation and are thus better predictors of the future. In practice, the relation of core and headline inflation is as difficult to predict as future inflation (see IIID Supply Shocks in http://cmpassocregulationblog.blogspot.com/2011/05/slowing-growth-global-inflation-great.html). In the fourth wave, risk aversion originating in the lack of resolution of the European debt crisis caused unwinding of carry trades with annual equivalent headline FD PPI inflation of minus 0.8 percent in Oct-Dec 2011 and minus 0.4 percent in the core annual equivalent. In the fifth wave from Jan to Mar 2012, annual equivalent inflation was 3.7 percent for the headline index and 3.2 percent for the core index excluding food and energy. In the sixth wave, annual equivalent inflation in Apr-May 2012 during renewed risk aversion was 0.6 percent for the headline FD PPI and 3.7 percent for the core. In the seventh wave, continuing risk aversion caused reversal of carry trades into commodity exposures with annual equivalent headline inflation of minus 1.2 percent in Jun-Jul 2012 while core FD PPI inflation was at annual equivalent minus 0.6 percent. In the eighth wave, relaxed risk aversion because of the announcement of the impaired bond buying program or Outright Monetary Transactions (OMT) of the European Central Bank (http://www.ecb.int/press/pr/date/2012/html/pr120906_1.en.html) induced carry trades that drove annual equivalent inflation of final demand producer prices of the United States at 5.5 percent in Aug-Sep 2012 and 1.2 percent in the core index. In the ninth wave, renewed risk aversion caused annual equivalent inflation of 1.2 percent in Oct 2011-Dec 2012 in the headline index and 2.4 percent in the core index. In the tenth wave, annual equivalent inflation was 1.8 percent in the headline index in Jan-Feb 2013 and 0.6 percent in the core index. In the eleventh wave, annual equivalent was minus 0.6 percent in Mar-Apr 2012 and 2.4 percent for the core index. In the twelfth wave, annual equivalent inflation returned at 1.8 percent in May-Aug 2013 and 1.2 percent in the core index. In the thirteenth wave, portfolio reallocations away from commodities and into equities reversed commodity carry trade with annual equivalent inflation of 1.2 percent in Sep-Nov 2013 in the headline FD PPI and 2.0 percent in the core. In the fourteenth wave, annual equivalent inflation returned at 0.4 percent annual equivalent for the headline index in Dec 2013-Feb 2014 and minus 0.4 percent for the core index. In the fifteenth wave, annual equivalent inflation increased to 6.2 percent in the headline FD PPI and 7.4 percent in the core in Mar 2014. It is almost impossible to forecast PPI inflation and its relation to CPI inflation. “Inflation surprise” by monetary policy could be proposed to climb along a downward sloping Phillips curve, resulting in higher inflation but lower unemployment (see Kydland and Prescott 1977, Barro and Gordon 1983 and past comments of this blog http://cmpassocregulationblog.blogspot.com/2011/05/slowing-growth-global-inflation-great.html http://cmpassocregulationblog.blogspot.com/2011/04/new-economics-of-rose-garden-turned.html http://cmpassocregulationblog.blogspot.com/2011/03/is-there-second-act-of-us-great.html http://cmpassocregulationblog.blogspot.com/2012/06/rules-versus-discretionary-authorities.html). The architects of monetary policy would require superior inflation forecasting ability compared to forecasting naivety by everybody else. In practice, we are all naïve in forecasting inflation and other economic variables and events.

Table I-6B, US, Headline and Core Final Demand Producer Price Inflation Monthly SA and 12-Month NSA ∆%

	Final Demand SA Month	Final Demand NSA 12 months	Final Demand Core SA Month	Final Demand NSA 12 months
Mar 2014	0.5	1.4	0.6	1.4
AE ∆% Mar	6.2		7.4
Feb	-0.1	0.9	-0.2	1.1
Jan	0.2	1.2	0.2	1.3
Dec 2013	0.0	1.1	-0.1	1.2
AE ∆% Dec-Feb	0.4		-0.4
Nov	0.0	1.1	0.1	1.4
Oct	0.3	1.3	0.2	1.7
Sep	0.1	1.1	0.2	1.6
AE ∆% Sep-Nov	1.2		2.0
Aug	-0.1	1.7	-0.1	1.8
Jul	0.3	2.0	0.3	1.7
Jun	0.5	1.7	0.5	1.3
May	-0.1	0.9	-0.3	0.9
AE ∆% May-Aug	1.8		1.2
Apr	0.0	0.9	0.2	1.3
Mar	-0.1	1.3	0.2	1.5
AE ∆% Mar-Apr	-0.6		2.4
Feb	0.2	1.6	0.1	1.4
Jan	0.1	1.6	0.0	1.7
AE ∆% Jan-Feb	1.8		0.6
Dec 2012	0.1	1.9	0.2	2.0
Nov	0.0	1.7	0.3	1.8
Oct	0.2	1.9	0.1	1.6
AE ∆% Oct-Dec	1.2		2.4
Sep	0.6	1.5	0.4	1.4
Aug	0.3	1.2	-0.2	1.2
AE ∆% Aug-Sep	5.5		1.2
Jul	0.0	1.0	0.0	1.7
Jun	-0.2	1.3	-0.1	1.9
AE ∆% Jun-Jul	-1.2		-0.6
May	-0.1	1.6	0.2	2.2
Apr	0.2	2.0	0.4	2.1
AE ∆% Apr-May	0.6		3.7
Mar	0.2	2.4	0.1	2.3
Feb	0.3	2.8	0.3	2.6
Jan	0.4	3.1	0.4	2.5
AE ∆% Jan-Mar	3.7		3.2
Dec 2011	-0.2	3.2	0.0	2.6
Nov	0.3	3.7	0.1	2.7
Oct	-0.3	3.7	-0.2	2.7
AE ∆% Oct-Dec	-0.8		-0.4
Sep	0.4	4.5	0.2	2.9
Aug	0.2	4.4	0.3	3.0
Jul	0.2	4.5	0.3	2.7
AE ∆% Jul-Sep	3.2		3.2
Jun	0.1	4.3	0.2	2.6
May	0.3	4.2	0.1	2.3
AE ∆% May-Jun	2.4		1.8
Apr	0.6	4.2	0.4	2.5
Mar	0.6	4.0	0.6	NA
Feb	0.6	3.3	0.2	NA
Jan	0.5	2.4	0.4	NA
AE ∆% Jan-Apr	7.1		4.9
Dec 2010	0.4	2.8	0.1	NA
Nov	0.3	2.6	0.1	NA
Oct	0.4	NA	0.1	NA
Sep	0.3	NA	0.2	NA
Aug	0.2	NA	0.0	NA
Jul	0.2	NA	0.2	NA
Jun	-0.2	NA	-0.1	NA
May	0.2	NA	0.3	NA
Apr	0.3	NA	NA	NA
Mar	0.1	NA	NA	NA
Feb	-0.2	NA	NA	NA
Jan	0.9	NA	NA	NA

Note: Core: excluding food and energy; AE: annual equivalent

Source: US Bureau of Labor Statistics http://www.bls.gov/ppi/data.htm

Chart I-24B provides the FD PPI NSA from 2009 to 2014. There is persistent inflation with periodic declines in inflation waves similar to those worldwide.

Chart I-24B, US, Final Demand Producer Price Index, NSA, 2009-2014

Source: US Bureau of Labor Statistics

Twelve-month percentage changes of the FD PPI from 2010 to 2014 are in Chart I-25B. There are fluctuations in the rates with evident trend of decline to more subdued inflation. Reallocations of investment portfolios of risk financial assets from commodities to stocks explain much lower FD PPI inflation.

Chart I-25B, US, Final Demand Producer Price Index, 12-Month Percentage Change NSA, 2010-2014

Source: US Bureau of Labor Statistics

The core FD PPI NSA is in Chart I-26B. The behavior is similar to the headline index but with much less cumulative inflation.

Chart I-26B, US, Final Demand Producer Price Index Excluding Food and Energy, NSA, 2009-2014

Source: US Bureau of Labor Statistics

Percentage changes in 12 months of the core FD PPI are in Chart I-27B. There are fluctuations in 12 months percentage changes but with evident declining trend to more moderate inflation.

Chart I-27B, US, Final Demand Producer Price Index Excluding Food and Energy, 12-Month Percentage Change, NSA, 2010-2014

Source: US Bureau of Labor Statistics

The energy FD PPI NSA is in Chart I-28B. The index increased during the reposition of carry trades after the discovery of lack of toxic assets in banks that caused flight away from risk financial assets into government obligations of the US (Cochrane and Zingales 2009). Alternating risk aversion and appetite with reallocations among classes of risk financial assets explain the behavior of the index after late 2010.

Chart I-28B, US, Final Demand Energy Producer Price Index, NSA, 2009-2014

Source: US Bureau of Labor Statistics

Twelve-month percentage changes of the FD energy PPI are in Chart I-29 B. Rates moderated from late 2010 to the present. There are multiple negative rates. Investors create and reverse carry trades from zero interest rates to derivatives of commodities in accordance with relative risk evaluations of classes of risk financial assets.

Chart I-29B, US, Final Demand Energy Producer Price Index, 12-Month Percentage Change, NSA, 2010-2014

Source: US Bureau of Labor Statistics

Table I-7 provides 12-month percentage changes of the CPI all items, CPI core and CPI housing from 2001 to 2014. There is no evidence in these data supporting symmetric inflation targets that would only induce greater instability in inflation, interest rates and financial markets. Unconventional monetary policy drives wide swings in allocations of positions into risk financial assets that generate instability instead of intended pursuit of prosperity without inflation. There is insufficient knowledge and imperfect tools to maintain the gap of actual relative to potential output constantly at zero while restraining inflation in an open interval (1.99, 2.0). Symmetric targets appear to have been abandoned in a favor of a self-imposed single jobs mandate of easing

monetary policy even with the economy growing at or close to potential output.

Chair Yellen analyzes the view of inflation (http://www.federalreserve.gov/newsevents/speech/yellen20140416a.htm):

“Inflation, as measured by the price index for personal consumption expenditures, has slowed from an annual rate of about 2-1/2 percent in early 2012 to less than 1 percent in February of this year. This rate is well below the Committee's 2 percent longer-run objective. Many advanced economies are observing a similar softness in inflation.

To some extent, the low rate of inflation seems due to influences that are likely to be temporary, including a deceleration in consumer energy prices and outright declines in core import prices in recent quarters. Longer-run inflation expectations have remained remarkably steady, however. We anticipate that, as the effects of transitory factors subside and as labor market gains continue, inflation will gradually move back toward 2 percent.”

What is truly important is the fixing of the overnight fed funds at 0 to ¼ percent for which there is no end in sight as evident in the FOMC statement for Mar 19, 2014 (http://www.federalreserve.gov/newsevents/press/monetary/20140319a.htm):

At a speech on Mar 31, 2014, Chair Yellen analyzed labor market conditions as follows (http://www.federalreserve.gov/newsevents/speech/yellen20140331a.htm):

Let me explain what I mean by that word "slack" and why it is so important.

Table I-7, CPI All Items, CPI Core and CPI Housing, 12-Month Percentage Change, NSA 2001-2013

Mar	CPI All Items	CPI Core ex Food and Energy	CPI Housing
2014	1.5	1.7	2.8
2013	1.5	1.9	1.9
2012	2.7	2.3	1.7
2011	2.7	1.2	0.8
2010	2.3	1.1	-0.6
2009	-0.4	1.8	1.4
2008	4.0	2.4	3.0
2007	2.8	2.5	3.4
2006	3.4	2.1	3.7
2005	3.1	2.3	3.3
2004	1.7	1.6	2.0
2003	3.0	1.7	2.9
2002	1.5	2.4	2.1
2001	2.9	2.7	4.5

Source: US Bureau of Labor Statistics http://www.bls.gov/cpi/

IE Theory and Reality of Economic History, Cyclical Slow Growth Not Secular Stagnation and Monetary Policy Based on Fear of Deflation. Fear of deflation as had occurred during the Great Depression and in Japan was used as an argument for the first round of unconventional monetary policy with 1 percent interest rates from Jun 2003 to Jun 2004 and quantitative easing in the form of withdrawal of supply of 30-year securities by suspension of the auction of 30-year Treasury bonds with the intention of reducing mortgage rates (for fear of deflation see Pelaez and Pelaez, International Financial Architecture (2005), 18-28, and Pelaez and Pelaez, The Global Recession Risk (2007), 83-95). The financial crisis and global recession were caused by interest rate and housing subsidies and affordability policies that encouraged high leverage and risks, low liquidity and unsound credit (Pelaez and Pelaez, Financial Regulation after the Global Recession (2009a), 157-66, Regulation of Banks and Finance (2009b), 217-27, International Financial Architecture (2005), 15-18, The Global Recession Risk (2007), 221-5, Globalization and the State Vol. II (2008b), 197-213, Government Intervention in Globalization (2008c), 182-4). Several past comments of this blog elaborate on these arguments, among which: http://cmpassocregulationblog.blogspot.com/2011/07/causes-of-2007-creditdollar-crisis.html http://cmpassocregulationblog.blogspot.com/2011/01/professor-mckinnons-bubble-economy.html http://cmpassocregulationblog.blogspot.com/2011/01/world-inflation-quantitative-easing.html http://cmpassocregulationblog.blogspot.com/2011/01/treasury-yields-valuation-of-risk.html http://cmpassocregulationblog.blogspot.com/2010/11/quantitative-easing-theory-evidence-and.html http://cmpassocregulationblog.blogspot.com/2010/12/is-fed-printing-money-what-are.html

If the forecast of the central bank is of recession and low inflation with controlled inflationary expectations, monetary policy should consist of lowering the short-term policy rate of the central bank, which in the US is the fed funds rate. The intended effect is to lower the real rate of interest (Svensson 2003LT, 146-7). The real rate of interest, r, is defined as the nominal rate, i, adjusted by expectations of inflation, π*, with all variables defined as proportions: (1+r) = (1+i)/(1+π*) (Fisher 1930). If i, the fed funds rate, is lowered by the Fed, the numerator of the right-hand side is lower such that if inflationary expectations, π*, remain unchanged, the left-hand (1+r) decreases, that is, the real rate of interest, r, declines. Expectations of lowering short-term real rates of interest by policy of the Federal Open Market Committee (FOMC) fixing a lower fed funds rate would lower long-term real rates of interest, inducing with a lag investment and consumption, or aggregate demand, that can lift the economy out of recession. Inflation also increases with a lag by higher aggregate demand and inflation expectations (Fisher 1933). This reasoning explains why the FOMC lowered the fed funds rate in Dec 2008 to 0 to 0.25 percent and left it unchanged.

The fear of the Fed is expected deflation or negative π*. In that case, (1+ π*) < 1, and (1+r) would increase because the right-hand side of the equation would be divided by a fraction. A simple numerical example explains the effect of deflation on the real rate of interest. Suppose that the nominal rate of interest or fed funds rate, i, is 0.25 percent, or in proportion 0.25/100 = 0.0025, such that (1+i) = 1.0025. Assume now that economic agents believe that inflation will remain at 1 percent for a long period, which means that π* = 1 percent, or in proportion 1/100 =0.01. The real rate of interest, using the equation, is (1+0.0025)/(1+0.01) = (1+r) = 0.99257, such that r = 0.99257 - 1 = -0.00743, which is a proportion equivalent to –(0.00743)100 = -0.743 percent. That is, Fed policy has created a negative real rate of interest of 0.743 percent with the objective of inducing aggregate demand by higher investment and consumption. This is true if expected inflation, π*, remains at 1 percent. Suppose now that expectations of deflation become generalized such that π* becomes -1 percent, that is, the public believes prices will fall at the rate of 1 percent in the foreseeable future. Then the real rate of interest becomes (1+0.0025) divided by (1-0.01) equal to (1.0025)/(0.99) = (1+r) = 1.01263, or r = (1.01263-1) = 0.01263, which results in positive real rate of interest of (0.01263)100 = 1.263 percent.

Irving Fisher also identified the impact of deflation on debts as an important cause of deepening contraction of income and employment during the Great Depression illustrated by an actual example (Fisher 1933, 346):

“By March, 1933, liquidation had reduced the debts about 20 percent, but had increased the dollar about 75 percent, so that the real debt, that is the debt measured in terms of commodities, was increased about 40 percent [100%-20%)X(100%+75%) =140%]. Unless some counteracting cause comes along to prevent the fall in the price level, such a depression as that of 1929-1933 (namely when the more the debtors pay the more they owe) tends to continue, going deeper, in a vicious spiral, for many years. There is then no tendency of the boat to stop tipping until it has capsized”

The nominal rate of interest must always be nonnegative, that is, i ≥ 0 (Hick 1937, 154-5):

“If the costs of holding money can be neglected, it will always be profitable to hold money rather than lend it out, if the rate of interest is not greater than zero. Consequently the rate of interest must always be positive. In an extreme case, the shortest short-term rate may perhaps be nearly zero. But if so, the long-term rate must lie above it, for the long rate has to allow for the risk that the short rate may rise during the currency of the loan, and it should be observed that the short rate can only rise, it cannot fall”

The interpretation by Hicks of the General Theory of Keynes is the special case in which at interest rates close to zero liquidity preference is infinitely or perfectly elastic, that is, the public holds infinitely large cash balances at that near zero interest rate because there is no opportunity cost of foregone interest. Increases in the money supply by the central bank would not decrease interest rates below their near zero level, which is called the liquidity trap. The only alternative public policy would consist of fiscal policy that would act similarly to an increase in investment, increasing employment without raising the interest rate.

An influential view on the policy required to steer the economy away from the liquidity trap is provided by Paul Krugman (1998). Suppose the central bank faces an increase in inflation. An important ingredient of the control of inflation is the central bank communicating to the public that it will maintain a sustained effort by all available policy measures and required doses until inflation is subdued and price stability is attained. If the public believes that the central bank will control inflation only until it declines to a more benign level but not sufficiently low level, current expectations will develop that inflation will be higher once the central bank abandons harsh measures. During deflation and recession the central bank has to convince the public that it will maintain zero interest rates and other required measures until the rate of inflation returns convincingly to a level consistent with expansion of the economy and stable prices. Krugman (1998, 161) summarizes the argument as:

“The ineffectuality of monetary policy in a liquidity trap is really the result of a looking-glass version of the standard credibility problem: monetary policy does not work because the public expects that whatever the central bank may do now, given the chance, it will revert to type and stabilize prices near their current level. If the central bank can credibly promise to be irresponsible—that is, convince the market that it will in fact allow prices to rise sufficiently—it can bootstrap the economy out of the trap”

This view is consistent with results of research by Christina Romer that “the rapid rates of growth of real output in the mid- and late 1930s were largely due to conventional aggregate demand stimulus, primarily in the form of monetary expansion. My calculations suggest that in the absence of these stimuli the economy would have remained depressed far longer and far more deeply than it actually did” (Romer 1992, 757-8, cited in Pelaez and Pelaez, Regulation of Banks and Finance (2009b), 210-2). The average growth rate of the money supply in 1933-1937 was 10 percent per year and increased in the early 1940s. Romer calculates that GDP would have been much lower without this monetary expansion. The growth of “the money supply was primarily due to a gold inflow, which was in turn due to the devaluation in 1933 and to capital flight from Europe because of political instability after 1934” (Romer 1992, 759). Gold inflow coincided with the decline in real interest rates in 1933 that remained negative through the latter part of the 1930s, suggesting that they could have caused increases in spending that was sensitive to declines in interest rates. Bernanke finds dollar devaluation against gold to have been important in preventing further deflation in the 1930s (Bernanke 2002):

“There have been times when exchange rate policy has been an effective weapon against deflation. A striking example from US history is Franklin Roosevelt’s 40 percent devaluation of the dollar against gold in 1933-34, enforced by a program of gold purchases and domestic money creation. The devaluation and the rapid increase in money supply it permitted ended the US deflation remarkably quickly. Indeed, consumer price inflation in the United States, year on year, went from -10.3 percent in 1932 to -5.1 percent in 1933 to 3.4 percent in 1934. The economy grew strongly, and by the way, 1934 was one of the best years of the century for the stock market”

Fed policy is seeking what Irving Fisher proposed “that great depressions are curable and preventable through reflation and stabilization” (Fisher 1933, 350).

The President of the Federal Reserve Bank of Chicago argues that (Charles Evans 2010):

“I believe the US economy is best described as being in a bona fide liquidity trap. Highly plausible projections are 1 percent for core Personal Consumption Expenditures (PCE) inflation at the end of 2012 and 8 percent for the unemployment rate. For me, the Fed’s dual mandate misses are too large to shrug off, and there is currently no policy conflict between improving employment and inflation outcomes”

There are two types of monetary policies that could be used in this situation. First, the Fed could announce a price-level target to be attained within a reasonable time frame (Evans 2010):

“For example, if the slope of the price path is 2 percent and inflation has been underunning the path for some time, monetary policy would strive to catch up to the path. Inflation would be higher than 2 percent for a time until the path was reattained”

Optimum monetary policy with interest rates near zero could consist of “bringing the price level back up to a level even higher than would have prevailed had the disturbance never occurred” (Gauti Eggertsson and Michael Woodford 2003, 207). Bernanke (2003JPY) explains as follows:

“Failure by the central bank to meet its target in a given period leads to expectations of (and public demands for) increased effort in subsequent periods—greater quantities of assets purchased on the open market for example. So even if the central bank is reluctant to provide a time frame for meetings its objective, the structure of the price-level objective provides a means for the bank to commit to increasing its anti-deflationary efforts when its earlier efforts prove unsuccessful. As Eggertsson and Woodford show, the expectations that an increasing price level gap will give rise to intensified effort by the central bank should lead the public to believe that ultimately inflation will replace deflation, a belief that supports the central bank’s own objectives by lowering the current real rate of interest”

Second, the Fed could use its balance sheet to increase purchases of long-term securities together with credible commitment to maintain the policy until the dual mandates of maximum employment and price stability are attained.

In the restatement of the liquidity trap and large-scale policies of monetary/fiscal stimulus, Krugman (1998, 162) finds:

“In the traditional open economy IS-LM model developed by Robert Mundell [1963] and Marcus Fleming [1962], and also in large-scale econometric models, monetary expansion unambiguously leads to currency depreciation. But there are two offsetting effects on the current account balance. On one side, the currency depreciation tends to increase net exports; on the other side, the expansion of the domestic economy tends to increase imports. For what it is worth, policy experiments on such models seem to suggest that these effects very nearly cancel each other out.

Krugman (1998) uses a different dynamic model with expectations that leads to similar conclusions.

The central bank could also be pursuing competitive devaluation of the national currency in the belief that it could increase inflation to a higher level and promote domestic growth and employment at the expense of growth and unemployment in the rest of the world. An essay by Chairman Bernanke in 1999 on Japanese monetary policy received attention in the press, stating that (Bernanke 2000, 165):

“Roosevelt’s specific policy actions were, I think, less important than his willingness to be aggressive and experiment—in short, to do whatever it took to get the country moving again. Many of his policies did not work as intended, but in the end FDR deserves great credit for having the courage to abandon failed paradigms and to do what needed to be done”

Quantitative easing has never been proposed by Chairman Bernanke or other economists as certain science without adverse effects. What has not been mentioned in the press is another suggestion to the Bank of Japan (BOJ) by Chairman Bernanke in the same essay that is very relevant to current events and the contentious issue of ongoing devaluation wars (Bernanke 2000, 161):

“Because the BOJ has a legal mandate to pursue price stability, it certainly could make a good argument that, with interest rates at zero, depreciation of the yen is the best available tool for achieving its mandated objective. The economic validity of the beggar-thy-neighbor thesis is doubtful, as depreciation creates trade—by raising home country income—as well as diverting it. Perhaps not all those who cite the beggar-thy-neighbor thesis are aware that it had its origins in the Great Depression, when it was used as an argument against the very devaluations that ultimately proved crucial to world economic recovery. A yen trading at 100 to the dollar is in no one’s interest”

Chairman Bernanke is referring to the argument by Joan Robinson based on the experience of the Great Depression that: “in times of general unemployment a game of beggar-my-neighbour is played between the nations, each one endeavouring to throw a larger share of the burden upon the others” (Robinson 1947, 156). Devaluation is one of the tools used in these policies (Robinson 1947, 157). Banking crises dominated the experience of the United States, but countries that recovered were those devaluing early such that competitive devaluations rescued many countries from a recession as strong as that in the US (see references to Ehsan Choudhri, Levis Kochin and Barry Eichengreen in Pelaez and Pelaez, Regulation of Banks and Finance (2009b), 205-9; for the case of Brazil that devalued early in the Great Depression recovering with an increasing trade balance see Pelaez, 1968, 1968b, 1972; Brazil devalued and abandoned the gold standard during crises in the historical period as shown by Pelaez 1976, Pelaez and Suzigan 1981). Beggar-my-neighbor policies did work for individual countries but the criticism of Joan Robinson was that it was not optimal for the world as a whole.

Chairman Bernanke (2013Mar 25) reinterprets devaluation and recovery from the Great Depression:

“The uncoordinated abandonment of the gold standard in the early 1930s gave rise to the idea of "beggar-thy-neighbor" policies. According to this analysis, as put forth by important contemporary economists like Joan Robinson, exchange rate depreciations helped the economy whose currency had weakened by making the country more competitive internationally. Indeed, the decline in the value of the pound after 1931 was associated with a relatively early recovery from the Depression by the United Kingdom, in part because of some rebound in exports. However, according to this view, the gains to the depreciating country were equaled or exceeded by the losses to its trading partners, which became less internationally competitive--hence, ‘beggar thy neighbor.’ Economists still agree that Smoot-Hawley and the ensuing tariff wars were highly counterproductive and contributed to the depth and length of the global Depression. However, modern research on the Depression, beginning with the seminal 1985 paper by Barry Eichengreen and Jeffrey Sachs, has changed our view of the effects of the abandonment of the gold standard. Although it is true that leaving the gold standard and the resulting currency depreciation conferred a temporary competitive advantage in some cases, modern research shows that the primary benefit of leaving gold was that it freed countries to use appropriately expansionary monetary policies. By 1935 or 1936, when essentially all major countries had left the gold standard and exchange rates were market-determined, the net trade effects of the changes in currency values were certainly small. Yet the global economy as a whole was much stronger than it had been in 1931. The reason was that, in shedding the strait jacket of the gold standard, each country became free to use monetary policy in a way that was more commensurate with achieving full employment at home.”

Nurkse (1944) raised concern on the contraction of trade by competitive devaluations during the 1930s. Haberler (1937) dwelled on the issue of flexible exchange rates. Bordo and James (2001) provide perceptive exegesis of the views of Haberler (1937) and Nurkse (1944) together with the evolution of thought by Haberler. Policy coordination among sovereigns may be quite difficult in practice even if there were sufficient knowledge and sound forecasts. Friedman (1953) provided strong case in favor of a system of flexible exchange rates.

Eichengreen and Sachs (1985) argue theoretically with measurements using a two-sector model that it is possible for series of devaluations to improve the welfare of all countries. There were adverse effects of depreciation on other countries but depreciation by many countries could be beneficial for all. The important counterfactual is if depreciations by many countries would have promoted faster recovery from the Great Depression. Depreciation in the model of Eichengreen and Sachs (1985) affected domestic and foreign economies through real wages, profitability, international competitiveness and world interest rates. Depreciation causes increase in the money supply that lowers world interest rates, promoting growth of world output. Lower world interest rates could compensate contraction of output from the shift of demand away from home goods originating in neighbor’s exchange depreciation. Eichengreen and Sachs (1985, 946) conclude:

“This much, however, is clear. We do not present a blanket endorsement of the competitive devaluations of the 1930s. Though it is indisputable that currency depreciation conferred macroeconomic benefits on the initiating country, because of accompanying policies the depreciations of the 1930s had beggar-thy-neighbor effects. Though it is likely that currency depreciation (had it been even more widely adopted) would have worked to the benefit of the world as a whole, the sporadic and uncoordinated approach taken to exchange-rate policy in the 1930s tended, other things being equal, to reduce the magnitude of the benefits.”

There could major difference in the current world economy. The initiating impulse for depreciation originates in zero interest rates on the fed funds rate. The dollar is the world’s reserve currency. Risk aversion intermittently channels capital flight to the safe haven of the dollar and US Treasury securities. In the absence of risk aversion, zero interest rates induce carry trades of short positions in dollars and US debt (borrowing) together with long leveraged exposures in risk financial assets such as stocks, emerging stocks, commodities and high-yield bonds. Without risk aversion, the dollar depreciates against every currency in the world. The dollar depreciated against the euro by 39.3 percent from USD 1.1423/EUR con Jun 26, 2003 to USD 1.5914/EUR on Jun 14, 2008 during unconventional monetary policy before the global recession (Table VI-1). Unconventional monetary policy causes devaluation of the dollar relative to other currencies, which can increases net exports of the US that increase aggregate economic activity (Yellen 2011AS). The country issuing the world’s reserve currency appropriates the advantage from initiating devaluation that in policy intends to generate net exports that increase domestic output.

Pelaez and Pelaez (Regulation of Banks and Finance (2009b), 208-209) summarize the experience of Brazil as follows:

“During 1927–9, Brazil accumulated ￡30 million of foreign exchange of which ￡20 million were deposited at its stabilization fund (Pelaez 1968, 43–4). After the decline in coffee prices and the first impact of the Great Depression in Brazil a hot money movement wiped out foreign exchange reserves. In addition, capital inflows stopped entirely. The deterioration of the terms of trade further complicated matters, as the value of exports in foreign currency declined abruptly. Because of this exchange crisis, the service of the foreign debt of Brazil became impossible. In August 1931, the federal government was forced to cancel the payment of principal on certain foreign loans. The balance of trade in 1931 was expected to yield ￡20 million whereas the service of the foreign debt alone amounted to ￡22.6 million. Part of the solution given to these problems was typical of the 1930s. In September 1931, the government of Brazil required that all foreign transactions were to be conducted through the Bank of Brazil. This monopoly of foreign exchange was exercised by the Bank of Brazil for the following three years. Export permits were granted only after the exchange derived from sales abroad was officially sold to the Bank, which in turn allocated it in accordance with the needs of the economy. An active black market in foreign exchange developed. Brazil was in the first group of countries that abandoned early the gold standard, in 1931, and suffered comparatively less from the Great Depression. The Brazilian federal government, advised by the BOE, increased taxes and reduced expenditures in 1931 to compensate a decline in custom receipts (Pelaez 1968, 40). Expenditures caused by a revolution in 1932 in the state of Sao Paulo and a drought in the northeast explain the deficit. During 1932–6, the federal government engaged in strong efforts to stabilize the budget. Apart from the deliberate efforts to balance the budget during the 1930s, the recovery in economic activity itself may have induced a large part of the reduction of the deficit (Ibid, 41). Brazil’s experience is similar to that of the United States in that fiscal policy did not promote recovery from the Great Depression.”

Is depreciation of the dollar the best available tool currently for achieving the dual mandate of higher inflation and lower unemployment? Bernanke (2002) finds dollar devaluation against gold to have been important in preventing further deflation in the 1930s (http://www.federalreserve.gov/boarddocs/speeches/2002/20021121/default.htm):

“Although a policy of intervening to affect the exchange value of the dollar is nowhere on the horizon today, it's worth noting that there have been times when exchange rate policy has been an effective weapon against deflation. A striking example from U.S. history is Franklin Roosevelt's 40 percent devaluation of the dollar against gold in 1933-34, enforced by a program of gold purchases and domestic money creation. The devaluation and the rapid increase in money supply it permitted ended the U.S. deflation remarkably quickly. Indeed, consumer price inflation in the United States, year on year, went from -10.3 percent in 1932 to -5.1 percent in 1933 to 3.4 percent in 1934.¹⁷ The economy grew strongly, and by the way, 1934 was one of the best years of the century for the stock market. If nothing else, the episode illustrates that monetary actions can have powerful effects on the economy, even when the nominal interest rate is at or near zero, as was the case at the time of Roosevelt's devaluation.”

Should the US devalue following Roosevelt? Alternatively, has monetary policy intended devaluation? Fed policy is seeking, deliberately or as a side effect, what Irving Fisher proposed “that great depressions are curable and preventable through reflation and stabilization” (Fisher, 1933, 350). The Fed has created not only high volatility of assets but also what many countries are regarding as a competitive devaluation similar to those criticized by Nurkse (1944). Yellen (2011AS, 6) admits that Fed monetary policy results in dollar devaluation with the objective of increasing net exports, which was the policy that Joan Robinson (1947) labeled as “beggar-my-neighbor” remedies for unemployment.

Table CPIEX, Annual Percentage Changes of the CPI All Items Excluding Food and Energy

Year	Annual ∆%
1958	2.4
1959	2.0
1960	1.3
1961	1.3
1962	1.3
1963	1.3
1964	1.6
1965	1.2
1966	2.4
1967	3.6
1968	4.6
1969	5.8
1970	6.3
1971	4.7
1972	3.0
1973	3.6
1974	8.3
1975	9.1
1976	6.5
1977	6.3
1978	7.4
1979	9.8
1980	12.4
1981	10.4
1982	7.4
1983	4.0
1984	5.0
1985	4.3
1986	4.0
1987	4.1
1988	4.4
1989	4.5
1990	5.0
1991	4.9
1992	3.7
1993	3.3
1994	2.8
1995	3.0
1996	2.7
1997	2.4
1998	2.3
1999	2.1
2000	2.4
2001	2.6
2002	2.4
2003	1.4
2004	1.8
2005	2.2
2006	2.5
2007	2.3
2008	2.3
2009	1.7
2010	1.0
2011	1.7
2012	2.1
2013	1.8

Source: Bureau of Labor Statistics

Table PPIEX, Annual Percentage Changes of the PPI Finished Goods Excluding Food and Energy

Year	Annual ∆%
1974	11.4
1975	11.4
1976	5.7
1977	6.0
1978	7.5
1979	8.9
1980	11.2
1981	8.6
1982	5.7
1983	3.0
1984	2.4
1985	2.5
1986	2.3
1987	2.4
1988	3.3
1989	4.4
1990	3.7
1991	3.6
1992	2.4
1993	1.2
1994	1.0
1995	2.1
1996	1.4
1997	0.3
1998	0.9
1999	1.7
2000	1.3
2001	1.4
2002	0.1
2003	0.2
2004	1.5
2005	2.4
2006	1.5
2007	1.9
2008	3.4
2009	2.6
2010	1.2
2011	2.4
2012	2.6
2013	1.5

Source: Bureau of Labor Statistics

Chart I-6, US, Producer Price Index, Finished Goods, NSA, 1947-2014

Source: US Bureau of Labor Statistics

Chart I-7, US, Producer Price Index, Finished Goods, 12-Month Percentage Change, NSA, 1948-2014

Source: US Bureau of Labor Statistics

Table I-1A, US, Annual PPI Inflation ∆% 1948-2013

Year	Annual ∆%
1948	8.0
1949	-2.8
1950	1.8
1951	9.2
1952	-0.6
1953	-1.0
1954	0.3
1955	0.3
1956	2.6
1957	3.8
1958	2.2
1959	-0.3
1960	0.9
1961	0.0
1962	0.3
1963	-0.3
1964	0.3
1965	1.8
1966	3.2
1967	1.1
1968	2.8
1969	3.8
1970	3.4
1971	3.1
1972	3.2
1973	9.1
1974	15.4
1975	10.6
1976	4.5
1977	6.4
1978	7.9
1979	11.2
1980	13.4
1981	9.2
1982	4.1
1983	1.6
1984	2.1
1985	1.0
1986	-1.4
1987	2.1
1988	2.5
1989	5.2
1990	4.9
1991	2.1
1992	1.2
1993	1.2
1994	0.6
1995	1.9
1996	2.7
1997	0.4
1998	-0.8
1999	1.8
2000	3.8
2001	2.0
2002	-1.3
2003	3.2
2004	3.6
2005	4.8
2006	3.0
2007	3.9
2008	6.3
2009	-2.6
2010	4.2
2011	6.0
2012	1.9
2013	1.2

Source: US Bureau of Labor Statistics