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Merger Performance Under Uncertain Efficiency Gains

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  • Rabah Amir
  • Effrosyni Diamantoudi
  • Licun Xue

Abstract

In view of the uncertainty over the ability of merging firms to achieve efficiency gains, we model the post-merger situation as a Cournot oligopoly wherein the outsiders face uncertainty about the merged entity’s final cost. At > the Bayesian equilibrium, a bilateral merger is profitable provided the non-merged firms sufficiently believe that the merger will generate large enough efficiency gains, even if ex post none actually materialize. The effects of the merger on market performance are shown to follow similar threshold rules. The findings are broadly consistent with stylized facts. An extensive welfare analysis is conducted, bringing out the key role of effciency gains and the different implications of consumer and social welfare standards.

Suggested Citation

  • Rabah Amir & Effrosyni Diamantoudi & Licun Xue, 2006. "Merger Performance Under Uncertain Efficiency Gains," Departmental Working Papers 2005-07, McGill University, Department of Economics.
  • Handle: RePEc:mcl:mclwop:2005-07
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    More about this item

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure

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