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Dynamic General Equilibrium Models with Imperfectly Competitive Product Markets

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  • Julio J. Rotemberg
  • Michael Woodford

Abstract

This paper discusses the consequences of introducing imperfectly competitive product markets into an otherwise standard neoclassical growth model. We pay particular attention to the consequences of imperfect competition for the explanation of fluctuations in aggregate economic activity. Market structures considered include monopolistic competition, the 'customer market' model of Phelps and Winter, and the implicit collusion model of Rotemberg and Saloner. Empirical evidence relevant to the numerical calibration of imperfectly competitive models is reviewed. The paper then analyzes the effects of imperfect competition upon the economy's response to several kinds of real shocks, including technology shocks, shocks to the level of government purchases, and shocks that change individual producers' degree of market power. It also discusses the role of imperfect competition in allowing for fluctuations due solely to self-fulfilling expectations.

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Bibliographic Info

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 4502.

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Date of creation: Oct 1993
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Publication status: published as Frontiers of Business Cycle Research, Cooley, T., ed., Princeton: Princeton University Press, 1995.
Handle: RePEc:nbr:nberwo:4502

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  1. Jess Benhabib & Roger E.A. Farmer, 1992. "Indeterminacy and Increasing Returns," UCLA Economics Working Papers 646, UCLA Department of Economics.
  2. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
  3. Plosser, C.I., 1989. "Understanding Real Business Cycles," RCER Working Papers 198, University of Rochester - Center for Economic Research (RCER).
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  5. Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-11, July.
  6. King, R.G. & Baxter, M., 1990. "Productive Externalities And Cyclical Volatility," RCER Working Papers 245, University of Rochester - Center for Economic Research (RCER).
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  8. Kydland, Finn E & Prescott, Edward C, 1982. "Time to Build and Aggregate Fluctuations," Econometrica, Econometric Society, vol. 50(6), pages 1345-70, November.
  9. Startz, Richard, 1989. "Monopolistic Competition as a Foundation for Keynesian Macroeconomic Models," The Quarterly Journal of Economics, MIT Press, vol. 104(4), pages 737-52, November.
  10. Rotemberg, Julio J & Saloner, Garth, 1986. "A Supergame-Theoretic Model of Price Wars during Booms," American Economic Review, American Economic Association, vol. 76(3), pages 390-407, June.
  11. Martin Eichenbaum, 1990. "Real business cycle theory: wisdom or whimsy?," Working Paper Series, Macroeconomic Issues 90-13, Federal Reserve Bank of Chicago.
  12. Julio J. Rotemberg & Michael Woodford, 1991. "Markups and the Business Cycle," NBER Chapters, in: NBER Macroeconomics Annual 1991, Volume 6, pages 63-140 National Bureau of Economic Research, Inc.
  13. Catherine J. Morrison, 1990. "Market Power, Economic Profitability and Productivity Growth Measurement: An Integrated Structural Approach," NBER Working Papers 3355, National Bureau of Economic Research, Inc.
  14. Ian Domowitz & R. Glenn Hubbard & Bruce C. Petersen, 1988. "Market Structure and Cyclical Fluctuations in U.S. Manufacturing," NBER Working Papers 2115, National Bureau of Economic Research, Inc.
  15. Benabou, R., 1991. "Inflation and Markups: Theories and Evidence from the Retail Trade Sector," Working papers 587, Massachusetts Institute of Technology (MIT), Department of Economics.
  16. Beggs, Alan W & Klemperer, Paul, 1992. "Multi-period Competition with Switching Costs," Econometrica, Econometric Society, vol. 60(3), pages 651-66, May.
  17. King, Robert G. & Plosser, Charles I. & Rebelo, Sergio T., 1988. "Production, growth and business cycles : I. The basic neoclassical model," Journal of Monetary Economics, Elsevier, vol. 21(2-3), pages 195-232.
  18. Evans, Charles L., 1992. "Productivity shocks and real business cycles," Journal of Monetary Economics, Elsevier, vol. 29(2), pages 191-208, April.
  19. Bils, Mark, 1989. "Pricing in a Customer Market," The Quarterly Journal of Economics, MIT Press, vol. 104(4), pages 699-718, November.
  20. Panzar, John C., 1989. "Technological determinants of firm and industry structure," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 1, pages 3-59 Elsevier.
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