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Inducing Efficiency in Oligopolistic Markets with Increasing Returns to Scale

Author

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  • Abhijit Sengupta

  • Yair Tauman

Abstract

We consider a Cournot Oligopoly market of firms possessing increasing returns to scale technologies. It is shown that an external regulating agency can increase total social welfare without running a deficit. It offers to subsidize one firm an amount which depends on the output level of that firm. The firms bid for this contract and the regulator collects the highest bid and subsidizes the highest bidding firm. It is shown that there exists a subsidy schedule such that (i) The regulator breaks even (namely the winning bid equals the total subsidy) (ii) The winning firm obtains zero net profit and charges a price equal to its average cost (iii) Every other firm willingly exit the market and (iv) Market price decreases, consumers are better off and total welfare improves.

Suggested Citation

  • Abhijit Sengupta & Yair Tauman, 2004. "Inducing Efficiency in Oligopolistic Markets with Increasing Returns to Scale," Department of Economics Working Papers 04-05, Stony Brook University, Department of Economics.
    • Handle: RePEc:nys:sunysb:04-05
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    Cited by:

    1. Chun‐Hsiung Liao & Yair Tauman, 2004. "Implementation of the Socially Optimal Outcome," Manchester School, University of Manchester, vol. 72(5), pages 618-625, September.

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    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • 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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