Price indices for information and communication technology industries: an application to the German PC market
Changing product quality, rapid technological progress, and short product life cycles make it difficult to compute indices that correctly reflect the true price movements of IT products. This paper assesses the differences between traditional and quality adjusted indices by providing results for PC hardware. Transaction price data for the period from 1985 to 1994 are used to construct price indices for personal computers in Germany. The use of hedonic methods allows to correct for quality changes. Quality-adjusted hardware prices decline by 34 percent on average per year according to our hedonic index. The estimation confirms the importance of quality adjustment since the decline of average prices at 7 percent p.a. is substantially lower, thus overestimating computer prices and inflation. When the hedonic index for German computer prices is compared to various indices calculated for the US market it seems that the decline of quality adjusted prices in Germany has been significantly higher than in the US. However if prices are converted to US$ the average decline is about 30 percent which is consistent with results for the US.
|Date of creation:||2001|
|Date of revision:|
|Contact details of provider:|| Postal: |
Web page: http://www.zew.de/
More information through EDIRC
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.:
- Ernst R. Berndt & Zvi Griliches, 1993.
"Price Indexes for Microcomputers: An Exploratory Study,"
in: Price Measurements and Their Uses, pages 63-100
National Bureau of Economic Research, Inc.
- Ernst R. Berndt & Zvi Griliches, 1990. "Price Indexes for Microcomputers: An Exploratory Study," NBER Working Papers 3378, National Bureau of Economic Research, Inc.
- White, Halbert, 1980. "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity," Econometrica, Econometric Society, vol. 48(4), pages 817-38, May.
- Rosen, Sherwin, 1974. "Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition," Journal of Political Economy, University of Chicago Press, vol. 82(1), pages 34-55, Jan.-Feb..
- Muellbauer, John, 1974. "Household Production Theory, Quality, and the "Hedonic Technique."," American Economic Review, American Economic Association, vol. 64(6), pages 977-94, December.
- Harhoff, Dietmar & Moch, Dietmar, 1996. "Price Indexes for PC Database Software and the Value of Code Compatibility," ZEW Discussion Papers 96-17, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
- Gordon, Robert J., 1990. "The Measurement of Durable Goods Prices," National Bureau of Economic Research Books, University of Chicago Press, edition 1, number 9780226304557.
- Nelson, Randy A & Tanguay, Tim L & Patterson, Christopher D, 1994. "A Quality-Adjusted Price Index for Personal Computers," Journal of Business & Economic Statistics, American Statistical Association, vol. 12(1), pages 23-31, January.
When requesting a correction, please mention this item's handle: RePEc:zbw:zewdip:5375. 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: (ZBW - German National Library of Economics)
If references are entirely missing, you can add them using this form.