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Quality-improving horizontal innovations

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We modify the growth model with horizontal innovations from Romer (1990) and Jones (1995) by assuming that researchers can determine the quality of the products they invent. Because research effort increases with product quality, the researchers face a tradeoff between the quantity and the quality of their innovations. We show (i) that every product is slowly but steadily driven out of the market by superior goods, (ii) that the model does not exhibit a strong scale effect, (iii) that the long-run growth rate of the economy is not policy-invariant but can be controlled by quality-contingent R&D subsidies, and (iv) that the optimal solution can be decentralized using a mix of production subsidies, R&D subsidies, and lump-sum taxation.

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File URL: http://homepage.univie.ac.at/Papers.Econ/RePEc/vie/viennp/vie0609.pdf
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Paper provided by University of Vienna, Department of Economics in its series Vienna Economics Papers with number 0609.

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Date of creation: Oct 2006
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Handle: RePEc:vie:viennp:0609

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Web page: http://www.univie.ac.at/vwl

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  1. Maria J. Alvarez-Pelaez & Christian Groth, 2002. "Too little or too much R&D?," Discussion Papers 02-01, University of Copenhagen. Department of Economics.
  2. Paul M Romer, 1999. "Endogenous Technological Change," Levine's Working Paper Archive 2135, David K. Levine.
  3. Aghion, P. & Howitt, P., 1989. "A Model Of Growth Through Creative Destruction," UWO Department of Economics Working Papers 8904, University of Western Ontario, Department of Economics.
  4. Gino Gancia & Fabrizio Zilibotti, 2005. "Horizontal innovation in the theory of growth and development," Economics Working Papers 831, Department of Economics and Business, Universitat Pompeu Fabra.
  5. Jones, Charles I, 1995. "R&D-Based Models of Economic Growth," Journal of Political Economy, University of Chicago Press, vol. 103(4), pages 759-84, August.
  6. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
  7. Peretto, Pietro F, 1998. " Technological Change and Population Growth," Journal of Economic Growth, Springer, vol. 3(4), pages 283-311, December.
  8. Gene M. Grossman & Elhanan Helpman, 1989. "Quality Ladders in the Theory of Growth," NBER Working Papers 3099, National Bureau of Economic Research, Inc.
  9. Aghion, Philippe & Howitt, Peter, 2005. "Growth with Quality-Improving Innovations: An Integrated Framework," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 1, chapter 2, pages 67-110 Elsevier.
  10. Charles I. Jones, 2002. "Sources of U.S. Economic Growth in a World of Ideas," American Economic Review, American Economic Association, vol. 92(1), pages 220-239, March.
  11. Charles I. Jones & John C. Williams, 1997. "Measuring the social return to R&D," Finance and Economics Discussion Series 1997-12, Board of Governors of the Federal Reserve System (U.S.).
  12. Alwyn Young, 1998. "Growth without Scale Effects," Journal of Political Economy, University of Chicago Press, vol. 106(1), pages 41-63, February.
  13. Segerstrom, Paul S, 1998. "Endogenous Growth without Scale Effects," American Economic Review, American Economic Association, vol. 88(5), pages 1290-1310, December.
  14. Charles I. Jones, 2004. "Growth and Ideas," NBER Working Papers 10767, National Bureau of Economic Research, Inc.
  15. Samuel S. Kortum, 1997. "Research, Patenting, and Technological Change," Econometrica, Econometric Society, vol. 65(6), pages 1389-1420, November.
  16. Dinopoulos, Elias & Thompson, Peter, 1998. " Schumpeterian Growth without Scale Effects," Journal of Economic Growth, Springer, vol. 3(4), pages 313-35, December.
  17. Benassy, Jean-Pascal, 1998. "Is there always too little research in endogenous growth with expanding product variety?," European Economic Review, Elsevier, vol. 42(1), pages 61-69, January.
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