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Statistical Moments Analysis of Production and Profits in Multi-Product Cournot Oligopoly

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  • Hennessy, David A.
  • Lapan, Harvey E.

Abstract

Our context involves N firms producing M products at constant marginal costs, and behaving as Cournot oligopolists. When preferences are quasi-linear, we study the relationships between second moments of unit costs and second moments of firm-level production. Larger variance in unit costs of a product increases own output variance and variance of any other output. We also investigate how second moments of unit costs affect the first and second moments of profit across firms. Larger variance in unit costs can reduce profit variance, even for a single product oligopoly.

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Bibliographic Info

Paper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 12471.

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Date of creation: 08 Nov 2005
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Publication status: Published in International Journal of Industrial Organization, March 2008, vol. 26, pp. 598-606
Handle: RePEc:isu:genres:12471

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Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070
Phone: +1 515.294.6741
Fax: +1 515.294.0221
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Web page: http://www.econ.iastate.edu
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  1. Philippe Aghion & Nicholas Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2002. "Competition and innovation: an inverted U relationship," IFS Working Papers W02/04, Institute for Fiscal Studies.
  2. Moschini, GianCarlo & Moro, D. & Green, Richard D., 1994. "Maintaining and Testing Separability in Demand Systems," Staff General Research Papers 11247, Iowa State University, Department of Economics.
  3. Fevrier, Philippe & Linnemer, Laurent, 2004. "Idiosyncratic shocks in an asymmetric Cournot oligopoly," International Journal of Industrial Organization, Elsevier, vol. 22(6), pages 835-848, June.
  4. Dansby, Robert E & Willig, Robert D, 1979. "Industry Performance Gradient Indexes," American Economic Review, American Economic Association, vol. 69(3), pages 249-60, June.
  5. Bergstrom, Theodore C. & Varian, Hal R., 1985. "Two remarks on Cournot equilibria," Economics Letters, Elsevier, vol. 19(1), pages 5-8.
  6. Ghemawat, Pankaj & Nalebuff, Barry, 1990. "The Devolution of Declining Industries," The Quarterly Journal of Economics, MIT Press, vol. 105(1), pages 167-86, February.
  7. Klette, Tor Jakob & Griliches, Zvi, 2000. "Empirical Patterns of Firm Growth and R&D Investment: A Quality Ladder Model Interpretation," Economic Journal, Royal Economic Society, vol. 110(463), pages 363-87, April.
  8. Jingang Zhao, 1999. "A Characterization of the Negative Welfare Effects of Cost Reduction in Cournot Oligopoly," Working Papers 99-06, Ohio State University, Department of Economics.
  9. Greg Shaffer & Stephen W. Salant, 1999. "Unequal Treatment of Identical Agents in Cournot Equilibrium," American Economic Review, American Economic Association, vol. 89(3), pages 585-604, June.
  10. Lapan, Harvey E. & Hennessy, David A., 2006. "A note on cost arrangement and market performance in a multi-product Cournot oligopoly," International Journal of Industrial Organization, Elsevier, vol. 24(3), pages 583-591, May.
  11. Bruce A. Blonigen & KaSaundra Tomlin, 1999. "Size and Growth of Japanese Plants in the United States," NBER Working Papers 7275, National Bureau of Economic Research, Inc.
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Cited by:
  1. Lapan, Harvey E. & Hennessy, David A., 2007. "Unit Vs. Ad Valorem Taxes in Multi-Product Cournot Oligopoly," Staff General Research Papers 12780, Iowa State University, Department of Economics.

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