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Nobel Laureates

Quality and Quantity Competition


Volume: Volume 14, No. 2

Issue: Autumn 1983

Pages: pp. 590-600

Authors: Esther Gal-Or

Title: Quality and Quantity Competition

Abstract: This article develops an oligopoly model where both prices and quality levels are determined at the equilibrium. Multiple symmetric equilibria arise when the distribution of consumers according to their willingness to pay is not uniform and more than one firm participates in the market. With a uniform distribution, we demonstrate that the impact of entry is to reduce average quality and to increase aggregate output. The implications for social welfare are ambiguous.


JEL Classification

Microeconomics Theory of Firm and Industry under Imperfectly Competitive Market Structures (0226)
Market Structure: Industrial Organization and Corporate Strategy (6110)