Reconsideration ofWeighting and Updating Procedures in the US CPI
In 2002, the US Bureau of Labor Statistics (BLS) introduced a supplemental C-CPI-U employing a superlative formula to provide a closer approximation to a cost-of-living index (COLI). This paper focuses on whether the BLS can improve upon the headline CPI-U’s current biennial weight update process, thereby reducing the CPI-U’s growth rate and bringing the index closer to the C-CPI-U. We begin by estimating superlative price indexes for 1999 through 2007 along with indexes based on the constant-elasticity-of-substitution demand model. Our analyses confirm that the consumer expenditure data underlying the CPI imply substantial consumer substitution, implying that the CPI-U’s Lowe index formula yields higher inflation estimates than would a true COLI. Simulating feasible weight update processes, we find that a Lowe index with two-year weight reference periods but annual updating rises by about 0.03 percentage points less per year than the CPI-U. Another 0.01 percentage point on average is subtracted by imposing annual revision with one-year base periods. Thus, indexes with more timely weights may offer improved representation of current price change, as well as closer approximations to a COLI.
Volume (Year): 230 (2010)
Issue (Month): 6 (December)
|Contact details of provider:|| Postal: |
Phone: +49 (0)641 99 22 001
Fax: +49 (0)641 99 22 009
Web page: http://wiwi.uni-giessen.de/home/oekonometrie/Jahrbuecher/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Robert C. Feenstra & Marshall B. Reinsdorf, 2007.
"Should Exact Index Numbers Have Standard Errors? Theory and Application to Asian Growth,"
in: Hard-to-Measure Goods and Services: Essays in Honor of Zvi Griliches, pages 483-513
National Bureau of Economic Research, Inc.
- Robert C. Feenstra & Marshall B. Reinsdorf, 2004. "Should Exact Index Numbers Have Standard Errors? Theory and Application to Asian Growth," NBER Working Papers 10197, National Bureau of Economic Research, Inc.
- Elliot D. Williams, 2006. "The Effects of Rounding on the Consumer Price Index," Working Papers 397, U.S. Bureau of Labor Statistics.
- Diewert, W. E., 1976. "Exact and superlative index numbers," Journal of Econometrics, Elsevier, vol. 4(2), pages 115-145, May.
- Feenstra, Robert C, 1994. "New Product Varieties and the Measurement of International Prices," American Economic Review, American Economic Association, vol. 84(1), pages 157-77, March.
- Christian Broda & David E. Weinstein, 2007.
"Product Creation and Destruction: Evidence and Price Implications,"
NBER Working Papers
13041, National Bureau of Economic Research, Inc.
- Christian Broda & David E. Weinstein, 2010. "Product Creation and Destruction: Evidence and Price Implications," American Economic Review, American Economic Association, vol. 100(3), pages 691-723, June.
- Sato, Kazuo, 1976. "The Ideal Log-Change Index Number," The Review of Economics and Statistics, MIT Press, vol. 58(2), pages 223-28, May.
When requesting a correction, please mention this item's handle: RePEc:jns:jbstat:v:230:y:2010:i:6:p:741-758. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Peter Winker)
If references are entirely missing, you can add them using this form.