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The Circular City with Heterogeneous Firms

The paper extends the Salop model of localized competition by allowing firms to have heterogeneous costs. We provide a general but highly tractable analytical solution for the equilibrium prices, and we study the long-run properties of the model using two different entry games. We show that cost heterogeneity affects the efficiency of the market equilibrium by increasing welfare and inducing less excessive entry. Further, we illustrate the positive effects of the existence of a selection mechanism, which induces less efficient firms not to start production. The model also replicates some recent results on dense markets.

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File URL: http://www.lboro.ac.uk/departments/ec/RePEc/lbo/lbowps/circle_city_WP_Lboro.pdf
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Paper provided by Department of Economics, Loughborough University in its series Discussion Paper Series with number 2008_03.

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Date of creation: Jul 2008
Date of revision: Jul 2008
Handle: RePEc:lbo:lbowps:2008_03
Contact details of provider: Postal: Loughborough, Leicestershire, LE11 3TU
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Web page: http://www.lboro.ac.uk/departments/sbe/research/economics/index.html

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  1. Joris Pinkse & Margaret E. Slade & Craig Brett, 2002. "Spatial Price Competition: A Semiparametric Approach," Econometrica, Econometric Society, vol. 70(3), pages 1111-1153, May.
  2. Qihong Liu & Konstantinos Serfes, 2005. "Imperfect price discrimination, market structure, and efficiency," Canadian Journal of Economics, Canadian Economics Association, vol. 38(4), pages 1191-1203, November.
  3. d'ASPREMONT, Claude & GABSZEWICZ, Jean J. & THISSE, Jacques-François, . "On Hotelling's "Stability in competition"," CORE Discussion Papers RP 385, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  4. Eaton, B Curtis & Lipsey, Richard G, 1978. "Freedom of Entry and the Existence of Pure Profit," Economic Journal, Royal Economic Society, vol. 88(351), pages 455-69, September.
  5. von Ungern-Sternberg, Thomas, 1991. "Monopolistic Competition on the Pyramid," Journal of Industrial Economics, Wiley Blackwell, vol. 39(4), pages 355-68, June.
  6. Spulber, Daniel F, 1995. "Bertrand Competition When Rivals' Costs Are Unknown," Journal of Industrial Economics, Wiley Blackwell, vol. 43(1), pages 1-11, March.
  7. Bester, Helmut, 1992. "Bertrand Equilibrium in a Differentiated Duopoly," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 33(2), pages 433-48, May.
  8. Anderson, Simon P & de Palma, André, 1996. "From Local to Global Competition," CEPR Discussion Papers 1328, C.E.P.R. Discussion Papers.
  9. Rothschild, R, 1982. "Competitive Behaviour in Chain-Linked Markets," Journal of Industrial Economics, Wiley Blackwell, vol. 31(1-2), pages 57-67, September.
  10. Yongmin Chen & Michael H. Riordan, 2007. "Price and Variety in the Spokes Model," Economic Journal, Royal Economic Society, vol. 117(522), pages 897-921, 07.
  11. Eric J. Bartelsman & Mark Doms, 2000. "Understanding productivity: lessons from longitudinal microdata," Finance and Economics Discussion Series 2000-19, Board of Governors of the Federal Reserve System (U.S.).
  12. Montagna, Catia, 1995. "Monopolistic Competition with Firm-Specific Costs," Oxford Economic Papers, Oxford University Press, vol. 47(2), pages 318-28, April.
  13. Volker Nocke, 2003. "A Gap for Me: Entrepreneurs and Entry," PIER Working Paper Archive 03-019, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  14. Bouckaert, Jan, 2000. "Monopolistic competition with a mail order business," Economics Letters, Elsevier, vol. 66(3), pages 303-310, March.
  15. Anthony Creane, 2007. "Note on uncertainty and socially excessive entry," International Journal of Economic Theory, The International Society for Economic Theory, vol. 3(4), pages 329-334.
  16. Catherine Schaumans & Frank Verboven, 2008. "Entry and regulation: evidence from health care professions," RAND Journal of Economics, RAND Corporation, vol. 39(4), pages 949-972.
  17. Waterson, Michael, 1990. "Product Differentiation and Profitability: An Asymmetric Model," Journal of Industrial Economics, Wiley Blackwell, vol. 39(2), pages 113-30, December.
  18. Aiura, Hiroshi & Sato, Yasuhiro, 2008. "Welfare properties of spatial competition with location-dependent costs," Regional Science and Urban Economics, Elsevier, vol. 38(1), pages 32-48, January.
  19. Claudio A. Piga, 1998. "A Dynamic Model of Advertising and Product Differentiation," Review of Industrial Organization, Springer, vol. 13(5), pages 509-522, October.
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