The Atlanta Fed's macroblog provides commentary on economic topics including monetary policy, macroeconomic developments, financial issues and Southeast regional trends.
- BLS Handbook of Methods
- Bureau of Economic Analysis
- Bureau of Labor Statistics
- Congressional Budget Office
- Economic Data - FRED® II, St. Louis Fed
- Office of Management and Budget
- Statistics: Releases and Historical Data, Board of Governors
- U.S. Census Bureau Economic Programs
- White House Economic Statistics Briefing Room
July 09, 2010
How close to deflation are we? Perhaps just a little closer than you thought
Since last October, the consumer price index (CPI) has gone up an annualized 0.7 percent. On an ex-food and energy basis, the number is a little lower, at 0.5 percent. And the Cleveland Fed's trimmed-mean and median CPIs, at 0.7 percent and 0.2 percent, respectively, also put the recent trend in consumer prices in pretty low territory.
And this is before we take into account any potential mismeasurement, or "bias," in the construction of the CPI.
How big is the CPI's bias? Well, in 1996, the Social Security Administration commissioned a study on the accuracy of the CPI as a measure of the cost of living. This so-called "Boskin Commission Report" said the CPI was overstated by about 1.1 percentage points per year. The commission identified several sources of potential bias, but about half of the 1.1 percentage points resulted from new products and quality changes that were slow or otherwise imperfectly introduced into the price statistic.
Since that time, the Bureau of Labor Statistics has initiated a number of methodological changes that have reduced the CPI's mismeasurement. In a 2001 paper, Federal Reserve Board economists David Lebow and Jeremy Rudd put the CPI bias at only about 0.6 percentage points. And again, of this amount, the big share of the bias (about 0.4 percentage points) resulted from the imperfect accounting of new and improved goods.
Now, in an article (available to all in its working paper version) appearing in the latest issue of the American Economic Review, Christian Broda and David Weinstein say the earlier estimates of the new goods/quality bias may be a bit understated. The authors examine prices from the AC Nielsen Homescan database and conclude that between 1996 and 2003, new and improved goods biased the CPI, on average, by about 0.8 percentage points per year. If this estimate is accurate, consumer price increases since last October would actually be around zero, or even slightly negative, once we account for the mismeasurement of the CPI caused by new and improved goods.
But (oh, you just knew there was going to be a "but" in here, right?) the authors also point out that, because new goods are introduced procyclically, this bias tends to be larger during expansions and smaller during recessions. In other words, given the severity of the recession and the modest pace of the recovery, there may not be a whole lot of innovation going on right now in consumer goods. This is a bad thing for consumers, of course, but it would be a good thing for the accuracy of the CPI.
By Mike Bryan, vice president and senior economist at the Atlanta Fed
TrackBack URL for this entry:
Listed below are links to blogs that reference How close to deflation are we? Perhaps just a little closer than you thought:
- Signs of Strengthening Wage Growth?
- What the Weather Wrought
- Déjà Vu All Over Again
- Is Measurement Error a Likely Explanation for the Lack of Productivity Growth in 2014?
- What Seems to Be Holding Back Labor Productivity Growth, and Why It Matters
- Signs of Improvement in Prime-Age Labor Force Participation
- Could Reduced Drilling Also Reduce GDP Growth?
- Are Shifts in Industry Composition Holding Back Wage Growth?
- Are Oil Prices "Passing Through"?
- Business as Usual?
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- Business Cycles
- Business Inflation Expectations
- Capital and Investment
- Capital Markets
- Data Releases
- Economic conditions
- Economic Growth and Development
- Exchange Rates and the Dollar
- Fed Funds Futures
- Federal Debt and Deficits
- Federal Reserve and Monetary Policy
- Financial System
- Fiscal Policy
- Health Care
- Inflation Expectations
- Interest Rates
- Labor Markets
- Latin America/South America
- Monetary Policy
- Money Markets
- Real Estate
- Saving, Capital, and Investment
- Small Business
- Social Security
- This, That, and the Other
- Trade Deficit