Valuation of New Goods Under Perfect and Imperfect Competition
The Consumer Price Index (CPI) attempts to answer the question of how much more (or less) income does a consumer require to be as well off in period 1 as in period 0 given changes in prices, changes in the quality of goods, and the introduction of new goods (or the disappearance of existing goods). In this paper I explain the theory of cost-of-living indices and demonstrate how new goods should be included using the classical theory of Hicks and Rothbarth. The correct price to use for the good in the pre-intro- duction period is a `virtual' price which sets demand to zero. Estimation of this virtual price requires estimation of a demand function which in turn provides the expenditure function which allows exact calucation of the cost of living index. The data requirements and need to specify and estimate a demand function for a new brand among many existing brands requires extensive data and some new econometric methods which may have proven obstacles to the inclusion of new goods in the CPI up to this point. As an example I use the introduction of a new cereal brand by General Mills in 1989-Apple Cinnamon Cheerios. I find the virtual price is about 2 times the actual price of Apple Cinnamon Cheerios and that increase in consumer surplus is substantial. Based on some simplifying approximations, I find that CPI may be overstated for cereal by about 25% because of its neglect of the effect of new brands. When I take imperfect competition into account I find that the increase in consumer welfare is only 85% as high with perfect competition so CPI for cereal would still be 20% too high
(This abstract was borrowed from another version of this item.)
To our knowledge, this item is not available for
download. To find whether it is available, there are three
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
|Date of creation:||1994|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: (617) 253-3361
Fax: (617) 253-1330
Web page: http://econ-www.mit.edu/
More information through EDIRC
|Order Information:|| Postal: MASSACHUSETTS INSTITUTE OF TECHNOLOGY (MIT), DEPARTMENT OF ECONOMICS, 50 MEMORIAL DRIVE CAMBRIDGE MASSACHUSETTS 02142 USA|
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.:
- Burtless, Gary & Hausman, Jerry A, 1978.
"The Effect of Taxation on Labor Supply: Evaluating the Gary Negative Income Tax Experiments,"
Journal of Political Economy,
University of Chicago Press, vol. 86(6), pages 1103-30, December.
- G. Burtless & J. A. Hausman, 1977. "The Effect of Taxation on Labor Supply: Evaluating the Gary Negative Income Tax Experiment," Working papers 211, Massachusetts Institute of Technology (MIT), Department of Economics.
- Dixit, Avinash K & Stiglitz, Joseph E, 1977.
"Monopolistic Competition and Optimum Product Diversity,"
American Economic Review,
American Economic Association, vol. 67(3), pages 297-308, June.
- Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
- 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.
- Jerry HAUSMAN & Gregory LEONARD & J. Douglas ZONA, 1994. "Competitive Analysis with Differentiated Products," Annales d'Economie et de Statistique, ENSAE, issue 34, pages 159-180.
- Hausman, Jerry A., 1980.
"The effect of wages, taxes, and fixed costs on women's labor force participation,"
Journal of Public Economics,
Elsevier, vol. 14(2), pages 161-194, October.
- Jerry A. Hausman, 1980. "The effect of wages, taxes, and fixed costs on women's labor force participation," NBER Chapters, in: Econometric Studies in Public Finance, pages 161-194 National Bureau of Economic Research, Inc.
- J. Hausman, 1979. "The Effect of Wages, Taxes and Fixed Costs on Women's Labor Force Participation," Working papers 238, Massachusetts Institute of Technology (MIT), Department of Economics.
- Hausman, Jerry A & Taylor, William E, 1981.
"Panel Data and Unobservable Individual Effects,"
Econometric Society, vol. 49(6), pages 1377-98, November.
- Neary, J. P. & Roberts, K. W. S., 1980.
"The theory of household behaviour under rationing,"
European Economic Review,
Elsevier, vol. 13(1), pages 25-42, January.
- Neary, J.P & Roberts, K.W.S, 1978. "The Theory of Household Behaviour under Rationing," The Warwick Economics Research Paper Series (TWERPS) 132, University of Warwick, Department of Economics.
- J. A. Hausman, 1976.
"Specification Tests in Econometrics,"
185, Massachusetts Institute of Technology (MIT), Department of Economics.
- repec:cup:cbooks:9780521296762 is not listed on IDEAS
- Hausman, Jerry A, 1981. "Exact Consumer's Surplus and Deadweight Loss," American Economic Review, American Economic Association, vol. 71(4), pages 662-76, September.
- Breusch, Trevor S & Mizon, Grayham E & Schmidt, Peter, 1989. "Efficient Estimation Using Panel Data," Econometrica, Econometric Society, vol. 57(3), pages 695-700, May.
When requesting a correction, please mention this item's handle: RePEc:mit:worpap:94-21. 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: (Linda Woodbury)
If references are entirely missing, you can add them using this form.