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2010•American Economic ReviewOpen access

Monopoly Price Discrimination and Demand Curvature

Iñaki Aguirre, Simon Cowan, John Vickers

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Abstract

This paper presents a general analysis of the effects of monopolistic third-degree price discrimination on welfare and output when all markets are served. Sufficient conditions—involving straightforward comparisons of the curvatures of the direct and inverse demand functions in the different markets—are presented for discrimination to have negative or positive effects on social welfare and output. (JEL D42)

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This paper presents a general analysis of the effects of monopolistic third-degree price discrimination on welfare and output when all markets are served. Sufficient conditions—involving straightforward comparisons of the curvatures of the direct and inverse demand functions in the different markets—are presented for discrimination to have negative or positive effects on social welfare and output. (JEL D42)

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Available abstract

This paper presents a general analysis of the effects of monopolistic third-degree price discrimination on welfare and output when all markets are served. Sufficient conditions—involving straightforward comparisons of the curvatures of the direct and inverse demand functions in the different markets—are presented for discrimination to have negative or positive effects on social welfare and output. (JEL D42)

Key concepts: Economics, Inverse demand function, Monopolistic competition, Monopoly, Price discrimination, Microeconomics, Welfare, Curvature

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