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Decomposing Productivity Growth in the U.S. Computer Industry

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Author Info
Hyunbae Chun (Department of Economics, Sogang University, Korea)
M. Ishaq Nadiri (Department of Economics, New York University, and NBER)

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Abstract

In this paper, we examine the sources of the productivity growth in the U.S. computer industry from 1978 to 1999. We estimate a joint production model of output quantity and quality that distinguishes two types of technological changes: process and product innovations. Based on the estimation results, we decompose total factor productivity (TFP) growth rate into the contributions of process and product innovations and scale economies. We find that product innovation associated with better quality accounts for about 30% of the TFP growth in the computer industry. Furthermore, the TFP acceleration in the computer industry in the late 1990s is mainly derived from a rapid increase in product innovation. Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology.

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Article provided by MIT Press in its journal The Review of Economics and Statistics.

Volume (Year): 90 (2008)
Issue (Month): 1 (November)
Pages: 174-180
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Handle: RePEc:tpr:restat:v:90:y:2008:i:1:p:174-180

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  1. Hendel, Igal, 1999. "Estimating Multiple-Discrete Choice Models: An Application to Computerization Returns," Review of Economic Studies, Blackwell Publishing, vol. 66(2), pages 423-46, April. [Downloadable!] (restricted)
  2. Kremer, Michael, 1993. "The O-Ring Theory of Economic Development," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 551-75, August. [Downloadable!] (restricted)
  3. Klette, Tor Jakob & Griliches, Zvi, 1996. "The Inconsistency of Common Scale Estimators When Output Prices Are Unobserved and Endogenous," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 11(4), pages 343-61, July-Aug.. [Downloadable!] (restricted)
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  4. M. Ishaq Nadiri & Banani Nandi, 1999. "Technical Change, Markup, Divestiture, And Productivity Growth In The U.S. Telecommunications Industry," The Review of Economics and Statistics, MIT Press, vol. 81(3), pages 488-498, August. [Downloadable!] (restricted)
  5. 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.. [Downloadable!] (restricted)
  6. Darren Filson, 2001. "The Nature and Effects of Technological Change over the Industry Life Cycle," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 4(2), pages 460-494, July. [Downloadable!] (restricted)
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  7. Karl Whelan, 2002. "Computers, Obsolescence, And Productivity," The Review of Economics and Statistics, MIT Press, vol. 84(3), pages 445-461, August. [Downloadable!] (restricted)
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  8. Bresnahan, Timothy F & Greenstein, Shane, 1999. "Technological Competition and the Structure of the Computer Industry," Journal of Industrial Economics, Blackwell Publishing, vol. 47(1), pages 1-40, March. [Downloadable!] (restricted)
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  9. Klepper, Steven, 1996. "Entry, Exit, Growth, and Innovation over the Product Life Cycle," American Economic Review, American Economic Association, vol. 86(3), pages 562-83, June. [Downloadable!] (restricted)
  10. Gort, Michael & Klepper, Steven, 1982. "Time Paths in the Diffusion of Product Innovations," Economic Journal, Royal Economic Society, vol. 92(367), pages 630-53, September. [Downloadable!] (restricted)
  11. Stavins, Joanna, 1995. "Model Entry and Exit in a Differentiated-Product Industry: The Personal Computer Market," The Review of Economics and Statistics, MIT Press, vol. 77(4), pages 571-84, November. [Downloadable!] (restricted)
  12. Bart Hobijn, 2001. "Is equipment price deflation a statistical artifact?," Staff Reports 139, Federal Reserve Bank of New York. [Downloadable!]
  13. Irwin, Douglas A & Klenow, Peter J, 1994. "Learning-by-Doing Spillovers in the Semiconductor Industry," Journal of Political Economy, University of Chicago Press, vol. 102(6), pages 1200-1227, December. [Downloadable!] (restricted)
  14. Davis, Peter, 2000. "Empirical models of demand for differentiated products," European Economic Review, Elsevier, vol. 44(4-6), pages 993-1005, May. [Downloadable!] (restricted)
  15. Stavins, Joanna, 1997. "Estimating demand elasticities in a differentiated product industry: The personal computer market," Journal of Economics and Business, Elsevier, vol. 49(4), pages 347-367. [Downloadable!] (restricted)
  16. Yorukoglu, Mehmet, 2000. "Product vs. process innovations and economic fluctuations," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 52(1), pages 137-163, June. [Downloadable!] (restricted)
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  1. Hyunbae Chun & Jung-Wook Kim & Jason Lee & Randall Morck, 2004. "Patterns of Comovement: The Role of Information Technology in the U.S. Economy," NBER Working Papers 10937, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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