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Mixed oligopoly equilibria when firms' objectives are endogenous

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  • De Donder, Philippe
  • Roemer, John E.

Abstract

We study a vertically differentiated market where two firms simultaneously choose the quality and price of the good they sell and where consumers may also care for the average quality of the goods supplied. Firms are composed of two factions whose objectives differ: one is maximizing profit while the other maximizes revenues. The equilibrium concept we model, called Firm Unanimity Nash Equilibrium (FUNE), corresponds to the Nash equilibrium between firms when there is efficient bargaining between the two factions inside both firms. We first show that such equilibria are inefficient, with both firms underproviding quality. We then assume that the government takes a participation in one firm, which introduces a third faction, bent on welfare maximization, in that firm. We study the characteristics of equilibria as a function of the bargaining weight of the welfare-maximizing faction. We show that equilibrium welfare increases with this bargaining weight, especially if consumers care a lot for the average quality of the goods provided.

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Bibliographic Info

Article provided by Elsevier in its journal International Journal of Industrial Organization.

Volume (Year): 27 (2009)
Issue (Month): 3 (May)
Pages: 414-423

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Handle: RePEc:eee:indorg:v:27:y:2009:i:3:p:414-423

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Web page: http://www.elsevier.com/locate/inca/505551

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Keywords: Mixed oligopoly Privatization Vertical differentiation Factions Party-unanimity Nash equilibrium;

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  1. John E. Roemer, 1999. "The Democratic Political Economy of Progressive Income Taxation," Econometrica, Econometric Society, vol. 67(1), pages 1-20, January.
  2. Woojin Lee & John Roemer & Karine Van der Straeten, 2006. "Racism, Xenophobia, and Redistribution," Journal of the European Economic Association, MIT Press, vol. 4(2-3), pages 446-454, 04-05.
  3. White, Mark D., 2002. "Political manipulation of a public firm's objective function," Journal of Economic Behavior & Organization, Elsevier, vol. 49(4), pages 487-499, December.
  4. Matsumura, Toshihiro, 1998. "Partial privatization in mixed duopoly," Journal of Public Economics, Elsevier, vol. 70(3), pages 473-483, December.
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Cited by:
  1. Nicola Doni & Giorgio Ricchiuti, 2011. "Market Equilibrium in the Presence of Green Consumers and Responsible Firms: A Comparative Statics Analysis," Working Papers 2011.33, Fondazione Eni Enrico Mattei.
  2. Pu-yan Nie, 2014. "Effects of capacity constraints on mixed duopoly," Journal of Economics, Springer, vol. 112(3), pages 283-294, July.
  3. John Bennett & Manfredi La manna, 2012. "Mixed Oligopoly and Entry," CEDI Discussion Paper Series 12-01, Centre for Economic Development and Institutions(CEDI), Brunel University.

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