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The Dreze and Grossman-Hart criteria for production in incomplete markets: Voting foundations and compared political stability

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  • CRES, Hervé

    ()

  • TVEDE, Mich

    (Institute of Economics, University of Copenhagen)

Abstract

This paper studies corporate control in a general equilibrium model with incomplete markets. At the market equilibrium, shareholders typically disagree on the way to evaluate production plans outside the market span. Hence a collective decision mechanism is needed to resolve this conflict. A mechanism proposed by Drèze (1974), resp. Grossman & Hart (1979), consists in allowing (Lindahl-like) sidepayments between final, resp. initial, shareholders. Although it is likely to exhibit desirable efficiency properties, this mechanism is difficult to implement. Another mechanism (e.g., Drèze (1985) and De-Marzo (1993)) relies on majority voting by shareholders. Since voting occurs in a multidimensional setup, super majority rules are needed to ensure existence of equilibria. We give conditions under which sidepayment equilibria are voting equilibria for the smallest rate of super majority ensuring existence. Thereby we are able to compare the relative performances of the Drèze and Grossman-Hart criteria with respect to stability in the voting mechanism. We show that the endogenization of portfolio holding in the Drèze criterion can either help or completely jeopardize the aggregation process, depending on the shareholders' expectations. This ambivalence is absent in the Grossman-Hart criteria.

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Bibliographic Info

Paper provided by HEC Paris in its series Les Cahiers de Recherche with number 794.

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Length: 22 pages
Date of creation: 01 Mar 2004
Date of revision:
Handle: RePEc:ebg:heccah:0794

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Related research

Keywords: incomplete markets; super majority voting; sidepayments; corporate charter; self-fulfilling prophcies;

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References

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  1. Greenberg, Joseph, 1979. "Consistent Majority Rules over Compact Sets of Alternatives," Econometrica, Econometric Society, vol. 47(3), pages 627-36, May.
  2. Egbert Dierker & Hildegard Dierker & Birgit Grodal, 2000. "Nonexistence of Constrained Efficient Equilibria when Markets are Incomplete," CIE Discussion Papers 2000-07, University of Copenhagen. Department of Economics. Centre for Industrial Economics.
  3. Simon Benninga & Eitan Muller, 1979. "Majority Choice and the Objective Function of the Firm under Uncertainty," Bell Journal of Economics, The RAND Corporation, vol. 10(2), pages 670-682, Autumn.
  4. Momi, Takeshi, 2001. "Non-existence of equilibrium in an incomplete stock market economy," Journal of Mathematical Economics, Elsevier, vol. 35(1), pages 41-70, February.
  5. Geanakoplos, J. & Magill, M. & Quinzii, M. & Dreze, J., . "Generic inefficiency of stock market equilibrium when markets are incomplete," CORE Discussion Papers RP -916, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  6. Andrew Caplin & Barry Nalebuff, 1990. "Aggregation and Social Choice: A Mean Voter Theorem," Cowles Foundation Discussion Papers 938, Cowles Foundation for Research in Economics, Yale University.
  7. Grossman, Sanford J & Hart, Oliver D, 1979. "A Theory of Competitive Equilibrium in Stock Market Economies," Econometrica, Econometric Society, vol. 47(2), pages 293-329, March.
  8. DeMarzo, Peter M, 1993. "Majority Voting and Corporate Control: The Rule of the Dominant Shareholder," Review of Economic Studies, Wiley Blackwell, vol. 60(3), pages 713-34, July.
  9. Sadanand, Asha B & Williamson, John M, 1991. "Equilibrium in a Stock Market Economy with Shareholder Voting," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(1), pages 1-35, February.
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Cited by:
  1. Mich Tvede & Hervé Crès, 2005. "Portfolio Diversification and Internalization of Production Externalities through Majority Voting," Sciences Po publications 816/2005, Sciences Po.
  2. Crès, Hervé & Tvede, Mich, 2006. "Portfolio diversification and internalization of production externalities through majority voting," Les Cahiers de Recherche 816, HEC Paris.

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