Minniti, A. and Parello, C. and Segerstrom, P. S. (2008): A Schumpeterian Growth Model with Heterogenous Firms.
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A common assumption in the Schumpeterian growth literature is that the innovation size is constant and identical across industries. This is in contrast with the empirical evidence which shows that: (i) the innovation size is far from being identical across industries; and (ii) the size distribution of profit returns from innovation is highly skewed toward the low value side, with a long tail on the high value side. In the present paper, we develop a Schumpeterian growth model that is consistent with this evidence. In particular, we assume that when a firm innovates, the size of its quality improvement is the result of a random draw from a Pareto distribution. This enables us to extend the class of quality-ladder growth models to encompass firm heterogeneity. We study the policy implications of this new set-up numerically and find that it is optimal to heavily subsidize R&D for plausible parameter values. Although it is optimal to tax R&D for some parameter values, this case only occurs when the steady-state rate of economic growth is very low.
|Item Type:||MPRA Paper|
|Original Title:||A Schumpeterian Growth Model with Heterogenous Firms|
|Keywords:||Schumpeterian Growth, R&D, optimal policy|
|Subjects:||L - Industrial Organization > L1 - Market Structure, Firm Strategy, and Market Performance > L16 - Industrial Organization and Macroeconomics: Industrial Structure and Structural Change; Industrial Price Indices
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development; Intellectual Property Rights > O38 - Government Policy
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development; Intellectual Property Rights > O31 - Innovation and Invention: Processes and Incentives
E - Macroeconomics and Monetary Economics > E1 - General Aggregative Models > E10 - General
|Depositing User:||Antonio Minniti|
|Date Deposited:||28. Feb 2009 11:57|
|Last Modified:||13. Feb 2013 03:30|
 Acemoglu, D. (2008). Introduction to Modern Economic Growth, Massachusetts Institute of Technology, unpublished book manuscript.
 Aghion P. and P. Howitt (1992). A model of growth through creative destruction, Econometrica 60, pp. 323-351.
 Basu S. (1996). Procyclical Productivity: Increasing Returns or Cyclical Utilization, Quarterly Journal of Economics, Vol. 111, pp. 709-751.
 Bental B. and D. Peled (1996). Endogenous Technical Progress and Growth: a Search Theoretic Approach, International Economic Review, Vol. 37, pp. 687-718.
 Bental B. and D. Peled (2002). Quantitative growth eects of subsidies in a search theoretic R&D model, Journal of Evolutionary Economics, Vol. 12, issue 4, pp. 397-423.
 Bertran F. L. (2003). Pricing Patents through Citations, University of Rochester, mimeo.
 Cohen, W.M. and R. C. Levin (1989). Empirical studies of innovation and market structure, in (R. Schmalensee and R. D. Willig eds.), Handbook of Industrial Organization, Vol. 2, 1059-1107.
 Dinopoulos E. and P. Thompson (1998). Schumpeterian Growth Without Scale Eects, Journal of Economic Growth, 3, pp. 313-335.
 Griliches Z. (1992). The Search for R&D Spillovers. Scandinavian Journal of Economics, 94, pp. 29-47.
 Grossman G. M. and E. Helpman (1991). Innovation in the Global Economy. MIT Press.
 Ha J. and P. Howitt (2007). Accounting for Trends in Productivity and R&D: A Schumpeterian Critique of Semi-Endogenous Growth Theory. Journal of Money Credit and Banking, 33, pp. 733-774.
 Hall B. H., A. B. Jae and M. Trajtenberg (2000). Market value and patent citations: A first look. NBER Working Paper n. 7741.
 Hall B. H., A. B. Jae and M. Trajtenberg (2001). The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools. NBER Working Paper n. 8498.
 Harho D., F. M. Scherer and K. Vopel (1997). Exploring the Tail of Patented Invention Value Distributions, WZB Working Paper, n. 97-27.
 Jae A., and M. Trajtenberg (1996). Flows of Knowledge from universities and federal labs: Modelling the ow of patent citations over time and across institutional and geographic boundaries, Proceedings of the National Academy of Science, n. 93, pp. 12671-12677.
 Jones, C.I. (2005). Growth and Ideas, in (P. Aghion and S. Durlauf eds.), Handbook of Economic Growth, Elsevier, 1063-1111.
 Jones, C.I., and J. Williams (2000). Too much of a good thing: The economics of investment in R&D. Journal of Economic Growth, 5, pp. 65-85.
 Klemperer, P. (1990). How broad should the scope patent protection be?. RAND Journal of Economics, 21, n. 1, pp. 113-131.
 Kortum S. (1997). Research, Patenting and Technological Change. Econometrica, 65, pp. 1389-1420.
 Li C. W. (2001). On the Policy Implications of Endogenous Technological Progress. Economic Journal, 111, pp. 164-179.
 Li C. W. (2003). Endogenous Growth without Scale Eects: Comment, The American Economic Review, 93, n. 3, pp. 1009-1017.
 Mehra, R., and E. C. Prescott. (1985). The Equity Premium: A Puzzle, Journal of Monetary Economics, 15, 145-161.
 Melitz M. J. (2003). The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity, Econometrica, Vol. 71, pp. 1695-1725.
 Melitz M. J. and G. I. P. Ottaviano (2003). Market Size, Trade, and Productivity, Harvard University, mimeo.
 Norrbin S. C. (1993). The Relationship between Price and Marginal Cost in US Industry: a Contradiction, Journal of Political Economy, Vol. 101, pp. 1149-1164.
 O'Donoghue T. (1998). A Patentability Requirement for Sequential Innovation, RAND Journal of Economics, Vol. 29(4), pp. 654-679.
 O'Donoghue T., S. Schotchmer and J. F. Thisse (1998). Patents Breath, Patents Life, and the Pace of Technological Progress, Journal of Economics and Management Strategy, Vol. 7, pp. 1-32.
 O'Donoghue T. and J. Zweimuller (2004). Patents in a model of endogenous growth, Journal of Economic Growth, Vol. 81(9), pp. 81-123.
 Popp D., (2005). Uncertain R&D and the Porter Hypothesis, The B.E. Journals in Economic Analysis & Policy (Contributions to Economic Analysis & Policy), Vol. 4, issue 1, article 6.
 Scherer F. M. (1965). Firm Size, Market Structure, Opportunity, and the Output of Patented Inventions", American Economic Review, Vol. 55, pp. 1097-1123.
 Segerstrom P. (1998). Endogenous Growth without Scale Eects, American Economic Review, 88, N. 5, pp. 1290-1310.
 Segerstrom P. (2007). Intel Economics, International Economic Review, 48, N. 1, pp. 247-280.
 Silverberg G. and B. Verspagen (2004). The size distribution of innovation revised: An application of extreme vale statistics to citation an value measures of patent signicance. ECIS Working Paper n. 14.17
 Steger T. (2003). The Segerstrom Model: Stability, Speed of Convergence and Policy Implications, Economics Bulletin, 15, pp. 1-8.
 Sveikauskas L. (2007). R&D and Productivity Growth: A Review of the Literature. BLS Working Paper n. 408.
 Thompson P. (1999). Rationality, rules of thumb, and R&D, Structural Change and Economic Dynamics, 10, pp. 321-340.
 Thompson P. and D. Waldo (1994). Growth and Trustied Capitalism, Journal of Monetary Economics 34, pp. 445-462.
 World Bank (2003), World Development Indicators, Washington, DC.