Post-Laspeyres; The Case for a New Formula for Compiling Consumer Price Indexes
Consumer price indexes (CPIs) are compiled at the higher (weighted) level using Laspeyres-type arithmetic averages. This paper questions the suitability of such formulas and considers two counterpart alternatives that use geometric averaging, the Geometric Young and the (price-updated) Geometric Lowe. The paper provides a formal decomposition and understanding of the differences between the two. Empirical results are provided using United States CPI data. The findings lead to an advocacy of variants of a hybrid formula suggested by Lent and Dorfman (2009) that substantially reduces bias from Laspeyres-type indexes.
|Date of creation:||01 Apr 2012|
|Contact details of provider:|| Postal: International Monetary Fund, Washington, DC USA|
Phone: (202) 623-7000
Fax: (202) 623-4661
Web page: http://www.imf.org/external/pubind.htm
More information through EDIRC
|Order Information:||Web: http://www.imf.org/external/pubs/pubs/ord_info.htm|
References listed on IDEAS
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.:
- Laurence Ball & N. Gregory Mankiw, 1995.
"Relative-Price Changes as Aggregate Supply Shocks,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 110(1), pages 161-193.
- Laurence Ball & N. Gregory Mankiw, 1992. "Relative-Price Changes as Aggregate Supply Shocks," NBER Working Papers 4168, National Bureau of Economic Research, Inc.
- Laurence Ball & N. Gregory Mankiw, 1993. "Relative-price changes as aggregate supply shocks," Working Papers 93-13, Federal Reserve Bank of Philadelphia.
- Ball, L. & Mankiw, G.H., 1992. "Relative-Price Change as Aggregate Supply Shocks," Harvard Institute of Economic Research Working Papers 1609, Harvard - Institute of Economic Research.
- Mick Silver & Christos Ioannidis, 2001. "Intercountry Differences in the Relationship between Relative Price Variability and Average Prices," Journal of Political Economy, University of Chicago Press, vol. 109(2), pages 355-374, April.
- Balk, Bert M., 1983. "Does there exist a relation between inflation and relative price-change variability? : The effect of the aggregation level," Economics Letters, Elsevier, vol. 13(2-3), pages 173-180.
- Silver, Mick & Heravi, Saeed, 2007. "Why elementary price index number formulas differ: Evidence on price dispersion," Journal of Econometrics, Elsevier, vol. 140(2), pages 874-883, October. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:imf:imfwpa:12/105. 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: (Jim Beardow)or (Hassan Zaidi)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.