Monopolistic Competition when Income Matters
AbstractWe study monopolistic competition with preferences over differentiated goods characterized by a separable indirect utility rather than a separable direct utility as in the Dixit-Stiglitz model, with the CES case as the only common ground. Examples include linear and log-linear direct demands. In equilibrium with free entry, an increase of the number of consumers is neutral on prices, but increases proportionally the number of firms, just creating pure gains from variety. Contrary to the Dixit-Stiglitz model, an increase in consumer income increases prices and more than proportionally the number of varieties if and only if the price elasticity of demand is increasing. We also discuss extensions to an outside good, heterogeneous consumers, heterogeneous firms à la Melitz and endogenous quality. Finally, we provide an application to international trade generating pricing to market in a generalized Krugman model.
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Bibliographic InfoPaper provided by University of Pavia, Department of Economics and Management in its series DEM Working Papers Series with number 055.
Length: 26 pages
Date of creation: Nov 2013
Date of revision:
Monopolistic competition; Indirect additivity; Non-homotheticity; Pricing to market; Krugman model; Melitz model;
Find related papers by JEL classification:
- D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
- L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
- F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
This paper has been announced in the following NEP Reports:
- NEP-ALL-2013-11-16 (All new papers)
- NEP-COM-2013-11-16 (Industrial Competition)
- NEP-IND-2013-11-16 (Industrial Organization)
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- Osharin, Alexander & Thisse, Jacques-François & Ushchev, Philip & Verbus, Valery, 2014.
"Monopolistic competition and income dispersion,"
Elsevier, vol. 122(2), pages 348-352.
- OSHARIN, Alexander & THISSE, Jacques-François & USCHEV, Philip & VERBUS, Valery, . "Monopolistic competition and income dispersion," CORE Discussion Papers RP -2547, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- OSHARIN, Alexander & THISSE, Jacques-François & USHCHEV, Philip & VERBUS, Valery, 2013. "Monopolistic competition and income dispersion," CORE Discussion Papers 2013071, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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