Working Paper No. 878

Endogenous Product Differentiation, Market Size and Prices

Published: August 12, 2011Pages: 27Keywords: Endogenous Technology; Entry; Market Size Effect; International Trade; Monopolistic CompetitionJEL-codes: D43; F12; L13
Published version

Endogenous Product Differentiation, Market Size and Prices Shon Ferguson

Recent empirical evidence suggests that prices for some goods and services are higher in larger markets. This paper provides a demand-side explanation for this phenomenon when firms can choose how much to differentiate their products in a model of monopolistic competition with horizontal product differentiation. The model proposes that consumers’ love of variety makes them more sensitive to product differentiation efforts by firms, which leads to higher prices in larger markets. At the same time, endogenous product differentiation modeled in this way can lead to a positive and concave relationship between market size and entry.

Shon Ferguson


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Sick of Inequality?

An Introduction to the Relationship between Inequality and Health

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In this book Andreas Bergh, Therese Nilsson, IFN and Lund University, and Daniel Waldenström, IFN and Paris School of Economics, France, review the latest research on the relationship between inequality and health. What does inequality mean for our health? Does increasing income inequality affect outcomes such as obesity, life expectancy and subjective well-being?


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