Statistical moments analysis of production and welfare in multi-product Cournot oligopoly
Our context involves N Cournot oligopolists producing M products at constant marginal costs when preferences are quasi-linear. We identify relationships between second moments of unit costs and second moments of firm-level production. For example, a larger variance in unit costs of a product increases own output variance and the variance of any other output. We also investigate how second moments of unit costs affect industry cost efficiency. Industry costs can rise if the wrong firm secures a cost reduction. For quadratic preferences, it is shown that Zhao's (Zhao, J., 2001. A characterization for the negative welfare effects of cost reduction in Cournot oligopoly. International Journal of Industrial Organization 19, 455-469 (3-4, March)) share criteria for an increase in unit costs to increase welfare extend to the multi-product setting.
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- Giancarlo Moschini & Daniele Moro & Richard D. Green, 1994.
"Maintaining and Testing Separability in Demand Systems,"
American Journal of Agricultural Economics,
Agricultural and Applied Economics Association, vol. 76(1), pages 61-73.
- 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.
- Grossmann, Volker, 2007. "Firm size and diversification: Multiproduct firms in asymmetric oligopoly," International Journal of Industrial Organization, Elsevier, vol. 25(1), pages 51-67, February.
- Seade, J, 1985. "Profitable Cost Increases and the Shifting of Taxation : Equilibrium Response of Markets in Oligopoly," The Warwick Economics Research Paper Series (TWERPS) 260, University of Warwick, Department of Economics.
- Long, Ngo Van & Soubeyran, Antoine, 2001.
"Cost Manipulation Games in Oligopoly, with Costs of Manipulating,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(2), pages 505-33, May.
- Ngo Van Long & Antoine Soubeyran, 1999. "Cost Manipulation Games in Oligopoly, with Costs of Manipulating," CIRANO Working Papers 99s-13, CIRANO.
- Ngo, Van Long & Soubeyran, Antoine, 1997.
"Cost heterogeneity, industry concentration and strategic trade policies,"
Journal of International Economics,
Elsevier, vol. 43(1-2), pages 207-220, August.
- Van Long, N. & Soubeyran, A., 1996. "Cost Heterogeneity, Industry Concentration and Startegic Trade Policies," G.R.E.Q.A.M. 96a39, Universite Aix-Marseille III.
- Lapan, Harvey E. & Hennessy, David A., 2006. "Note on Cost Arrangement and Market Performance in a Multi-Product Cournot Oligopoly, A," Staff General Research Papers 12720, Iowa State University, Department of Economics.
- Ngo Van Long & Antoine Soubeyran, 2002.
"Selective Penalization Of Polluters: An Inf-Convolution Approach,"
CIRANO Working Papers
- Ngo Long & Antoine Soubeyran, 2005. "Selective penalization of polluters: an inf-convolution approach," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 25(2), pages 421-454, 02.
- Jingang Zhao, 1999.
"A Characterization of the Negative Welfare Effects of Cost Reduction in Cournot Oligopoly,"
99-06, Ohio State University, Department of Economics.
- Zhao, Jingang, 2001. "A characterization for the negative welfare effects of cost reduction in Cournot oligopoly," International Journal of Industrial Organization, Elsevier, vol. 19(3-4), pages 455-469, March.
- Bergstrom, Theodore C. & Varian, Hal R., 1985. "Two remarks on Cournot equilibria," Economics Letters, Elsevier, vol. 19(1), pages 5-8.
- Lahiri, Sajal & Ono, Yoshiyasu, 1988. "Helping Minor Firms Reduces Welfare," Economic Journal, Royal Economic Society, vol. 98(393), pages 1199-1202, December.
- 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.
- 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.
- Wang, X. Henry & Zhao, Jingang, 2007. "Welfare reductions from small cost reductions in differentiated oligopoly," International Journal of Industrial Organization, Elsevier, vol. 25(1), pages 173-185, February.
- 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.
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