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Portfolio Diversification and Internalization of Production Externalities through Majority Voting

Author

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  • Hervé Crès

    (GREGH - Groupement de Recherche et d'Etudes en Gestion à HEC - HEC Paris - Ecole des Hautes Etudes Commerciales - CNRS - Centre National de la Recherche Scientifique)

  • Mich Tvede

Abstract

A general equilibrium model with uncertainty and production externalities is studied. In absence of markets for externalities, we look for governances and conditions under which majority voting among shareholders is likely to give rise to efficient internalization. We argue that the financial market clearing conditions endogenously set up, within the firms, social choice configurations where the (perfectly diversified) market portfolio, which gives the right incentives for economic efficiency, happens to be a good (and sometimes the best) candidate in the political process, i.e., a candidate with good stability properties with respect to the majority rule. The central and natural role played by a governance of stakeholders is underlined and benchmarked.

Suggested Citation

  • Hervé Crès & Mich Tvede, 2005. "Portfolio Diversification and Internalization of Production Externalities through Majority Voting," Working Papers hal-00587205, HAL.
  • Handle: RePEc:hal:wpaper:hal-00587205
    Note: View the original document on HAL open archive server: https://hal-hec.archives-ouvertes.fr/hal-00587205
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    References listed on IDEAS

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    1. 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.
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    5. Hervé Crès & Mich Tvede, 2004. "The Drèze and Grossman-Hart criteria for production in incomplete markets: Voting foundations and compared political stability," Working Papers hal-00591676, HAL.
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    Cited by:

    1. Hervé Crès & M. Utku Ünver, 2010. "Ideology and Existence of 50%-Majority Equilibria in Multidimensional Spatial Voting Models," Journal of Theoretical Politics, , vol. 22(4), pages 431-444, October.
    2. Azar, José & Schmalz, Martin & Tecu, Isabel, 2017. "Anti-Competitive Effects of Common Ownership," IESE Research Papers D/1169, IESE Business School.

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    More about this item

    Keywords

    mean voter; Production externalities; majority voting; portfolio diversification; general equilibrium; stakeholder governance; mean voter.;
    All these keywords.

    JEL classification:

    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • G39 - Financial Economics - - Corporate Finance and Governance - - - Other

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