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Quality Ladders And Product Cycles

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Author Info

  • GROSSMAN, G.M.
  • HELPMAN, E.

Abstract

We develop a two-country model of endogenous innovation and imitation in order to study the interactions between these two processes. Firms in the North race to bring out the next generation of a set of technology-intensive products. Each product potentially can be improved a countably infinite number of times, but quality improvements require the investment of resources and entail uncertain prospects of success. In the South entrepreneurs invest resources in order to learn the production processes that have been developed in the North. All R&D investment decisions are made by forward-looking, profit-maximizing entrepreneurs. The steady-state equilibrium is characterized by constant aggregate rates of innovation and imitation. We study how these rates respond to changes in the sizes of the two regions and to policies in each region to promote learning. Copyright 1991, the President and Fellows of Harvard College and the Massachusetts Institute of Technology.

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Bibliographic Info

Paper provided by Princeton, Woodrow Wilson School - Public and International Affairs in its series Papers with number 152.

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Length: 29 pages
Date of creation: 1989
Date of revision:
Handle: RePEc:fth:priwpu:152

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Postal: PRINCETON UNIVERSITY, WOODROW WILSON SCHOOL OF PUBLIC AND INTERNATIONAL AFFAIRS, PRINCETON NEW- JERSEY 08542 U.S.A.
Phone: (609) 258-4800
Web page: http://www.wws.princeton.edu/
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Related research

Keywords: innovations ; enterprises ; research and development ; investment policy;

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References

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  1. Aghion, P. & Howitt, P., 1989. "A Model Of Growth Through Creative Destruction," Working papers 527, Massachusetts Institute of Technology (MIT), Department of Economics.
  2. Flam, Harry & Helpman, Elhanan, 1987. "Vertical Product Differentiation and North-South Trade," American Economic Review, American Economic Association, vol. 77(5), pages 810-22, December.
  3. Grossman, G.M. & Helpman, E., 1989. "Endogenous Prduct Cycles," Papers 144, Princeton, Woodrow Wilson School - Public and International Affairs.
  4. Krugman, Paul, 1979. "A Model of Innovation, Technology Transfer, and the World Distribution of Income," Journal of Political Economy, University of Chicago Press, vol. 87(2), pages 253-66, April.
  5. Grossman, G.M. & Helpman, E., 1989. "Endogemour Product Cycles," Papers 10-89, Tel Aviv.
  6. Romer, Paul M, 1990. "Endogenous Technological Change," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages S71-102, October.
  7. Segerstrom, Paul S & Anant, T C A & Dinopoulos, Elias, 1990. "A Schumpeterian Model of the Product Life Cycle," American Economic Review, American Economic Association, vol. 80(5), pages 1077-91, December.
  8. Stokey, Nancy L, 1991. "The Volume and Composition of Trade between Rich and Poor Countries," Review of Economic Studies, Wiley Blackwell, vol. 58(1), pages 63-80, January.
  9. Jensen, Richard & Thursby, Marie, 1986. "A strategic approach to the product life cycle," Journal of International Economics, Elsevier, vol. 21(3-4), pages 269-284, November.
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