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Inducing efficiency in oligopolistic markets with increasing returns to scale

  • Sengupta, Abhijit
  • Tauman, Yair

We consider a Cournot oligopoly market of firms possessing increasing returns to scale technologies (which may not be identical). It is shown that an external regulating agency can increase total social welfare without running a deficit by offering to subsidize one firm an amount which depends on the output level of that firm and the market price. The firms bid for this contract, the regulator collects the highest bid upfront and subsidizes the highest bidding firm. It is shown that there exists a subsidy schedule such that (i) the regulator breaks even, (ii) the subsidized 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.

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Article provided by Elsevier in its journal Mathematical Social Sciences.

Volume (Year): 62 (2011)
Issue (Month): 2 (September)
Pages: 95-100

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Handle: RePEc:eee:matsoc:v:62:y:2011:i:2:p:95-100
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505565

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  1. Auriol, Emmanuelle & Laffont, Jean-Jacques, 1992. "Regulation by Duopoly," IDEI Working Papers 20, Institut d'Économie Industrielle (IDEI), Toulouse.
  2. Vogelsang, Ingo, 2002. "Incentive Regulation and Competition in Public Utility Markets: A 20-Year Perspective," Journal of Regulatory Economics, Springer, vol. 22(1), pages 5-27, July.
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  4. Baron, David P & Myerson, Roger B, 1982. "Regulating a Monopolist with Unknown Costs," Econometrica, Econometric Society, vol. 50(4), pages 911-30, July.
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  6. Guesnerie Roger & Laffont Jean-jacques, 1978. "Taxing price makers," CEPREMAP Working Papers (Couverture Orange) 7806, CEPREMAP.
  7. Grimm, Veronika & Riedel, Frank & Wolfstetter, Elmar, 2000. "Implementing efficient market structure," SFB 373 Discussion Papers 2000,19, Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes.
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  9. Sappington, David E M & Sibley, David S, 1988. "Regulating without Cost Information: The Incremental Surplus Subsidy Scheme," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 29(2), pages 297-306, May.
  10. 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, June.
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  12. repec:cup:cbooks:9780521551847 is not listed on IDEAS
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