Monopolistic Competition and Preference Diversity

This paper presents a general model of the demand for differentiated products which has as special cases two popular models used to analyse welfare and competition in monopolistically competitive markets: the model of spatial competition and the symmetric aggregate benefit function approach. Our mod...

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Bibliographic Details
Published in:The Review of economic studies 1992-04, Vol.59 (2), p.361-373
Main Authors: Deneckere, Raymond, Rothschild, Michael
Format: Article
Language:English
Subjects:
Aggregate demand
Brands
Consumer economics
Consumer preferences
Economic competition
Economic models
Modeling
Monopolistic competition
Nash equilibrium
Spatial models
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Summary:This paper presents a general model of the demand for differentiated products which has as special cases two popular models used to analyse welfare and competition in monopolistically competitive markets: the model of spatial competition and the symmetric aggregate benefit function approach. Our model is especially attractive because it starts from economic primitives: a specification of the set of possible individual preference patterns. It shows how specific properties of the distribution of preferences translate into properties of aggregate demand. This allows us to understand the relationship between the distribution of preferences and the degree to which the market introduces biases in product selection.
ISSN:0034-6527
1467-937X
DOI:10.2307/2297958