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Should Regulators Be More Proactive About Entry? An Evaluation under Asymmetric Information

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  • SARMENTO, PAULA
  • BRANDÃO, ANTÓNIO

Abstract

We compare the costs oftwo regulatory policies about the entry ofnew firms. We consider an incumbent firm that has more information about the market demand than the regulator and can use this advantage to persuade the regulator to make entry more difficult. With the first regulatory policy the regulator uses the incumbent price pre-regulation to get information about the demand. With the second regulatory policy the regulator designs a mechanism to motivate the incumbent firm to price truthfully. We conclude that for a wide range ofsituations, social welfare is strictly higher with the more active regulatory policy.

Suggested Citation

  • Sarmento, Paula & Brandão, António, 2012. "Should Regulators Be More Proactive About Entry? An Evaluation under Asymmetric Information," Hitotsubashi Journal of Economics, Hitotsubashi University, vol. 53(1), pages 71-84, June.
    • Handle: RePEc:hit:hitjec:v:53:y:2012:i:1:p:71-84
    DOI: 10.15057/23147
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    References listed on IDEAS

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    1. Milgrom, Paul & Roberts, John, 1982. "Limit Pricing and Entry under Incomplete Information: An Equilibrium Analysis," Econometrica, Econometric Society, vol. 50(2), pages 443-459, March.
    2. Kotaro Suzumura & Kazuharu Kiyono, 1987. "Entry Barriers and Economic Welfare," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 54(1), pages 157-167.
    3. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, December.
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    Keywords

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    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation

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