Market competition, social welfare in an entry-constrained differentiated-good oligopoly
This paper studies a differentiated-good oligopoly where the socially optimal number of firms (varieties) may be smaller or greater than under the free-entry equilibrium. We show that, under certain conditions, social welfare may be higher when entry is restricted into the industry.
References listed on IDEAS
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- Häckner, Jonas, 1999.
"A Note on Price and Quantity Competition in Differentiated Oligopolies,"
Research Papers in Economics
1999:9, Stockholm University, Department of Economics.
- Hackner, Jonas, 2000. "A Note on Price and Quantity Competition in Differentiated Oligopolies," Journal of Economic Theory, Elsevier, vol. 93(2), pages 233-239, August.
- Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
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