Symmetric equilibrium existence and optimality in differentiated product markets
DOI: 10.1016/0022-0531(89)90108-7
关键词:
摘要: Abstract Equilibrium existence and optimality are analysed in a market for products differentiated by their variety. A game of three stages is analysed. Firms enter the first stage, choose varieties second prices third stage. The subgame-perfect equilibria established. At equilibrium symmetrically located space characteristics offered at equal prices. surplus maximizing solution characterized, it shown that product diversity lower than one.
elsevier.com
sci-hub.se 参考文章(25)
Steven C. Salop, Monopolistic competition with outside goods The Bell Journal of Economics. ,vol. 10, pp. 141- 156 ,(1979) , 10.2307/3003323
Avinash K. Dixit, Joseph E. Stiglitz, Monopolistic competition and optimum product diversity The American Economic Review. ,vol. 67, pp. 302- 304 ,(1977) , 10.22004/AG.ECON.268957
Konrad Stahl, Existence of equilibria in spatial economies: Presentation Regional Science and Urban Economics. ,vol. 15, pp. 143- 147 ,(1985) , 10.1016/0166-0462(85)90001-8
Edward C. Prescott, Michael Visscher, Sequential location among firms with foresight The Bell Journal of Economics. ,vol. 8, pp. 378- 393 ,(1977) , 10.2307/3003293
Oliver D. Hart, Monopolistic competition in a large economy with differentiated commodities The Review of Economic Studies. ,vol. 46, pp. 1- 30 ,(1979) , 10.2307/2297169
Nicholas Economides, The principle of minimum differentiation revisited European Economic Review. ,vol. 24, pp. 345- 368 ,(1984) , 10.1016/0014-2921(84)90061-8
James W. Friedman, Oligopoly and the theory of games ,(1977)
R. Selten, Reexamination of the perfectness concept for equilibrium points in extensive games International Journal of Game Theory. ,vol. 4, pp. 25- 55 ,(1975) , 10.1007/BF01766400
William Novshek, Equilibrium in simple spatial (or differentiated product) models Journal of Economic Theory. ,vol. 22, pp. 313- 326 ,(1980) , 10.1016/0022-0531(80)90045-9
B. Curtis Eaton, Richard G. Lipsey, The Principle of Minimum Differentiation Reconsidered: Some New Developments in the Theory of Spatial Competition The Review of Economic Studies. ,vol. 42, pp. 27- 49 ,(1975) , 10.2307/2296817