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A note on price and quantity competition in differentiated oligopolies. (English) Zbl 1028.91563
Author’s summary: The author shows that the results developed in {\it N. Singh} and {\it X. Vives} [Rand J. Econ. 15, 546-554 (1984)] are sensitive to the duopoly assumption. If there are more than two firms, prices may be higher under price competition than under quantity competition. This will be the case if quality differences are large and goods are complements. If goods are substitutes, high-quality firms may earn higher profits under price competition than under quantity competition. Hence, it is not evident which kind of competition is more efficient.

91B38Production theory, theory of the firm (economics)
91B52Special types of equilibria in economics
Full Text: DOI
[1] Dixit, A.: A model of duopoly suggesting a theory of entry barriers. Bell J. Econ. 10, 20-32 (1979)
[2] Kreps, D.; Scheinkman, J. -A.: Quantity precommitment and bertrand competition yield cournot outcomes. Bell J. Econ. 14, 326-337 (1983)
[3] Singh, N.; Vives, X.: Price and quantity competition in a differentiated duopoly. Rand J. Econ. 15, 546-554 (1984)