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Generalized Comparative Statics under Monopolistic Competition:Anti-competitive Paradox, Immiserizing Growth, Catastrophes

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  • Kokovin Sergey

    ()

  • Zhelobodko Evgeniy

    ()

Abstract

Several common wisdoms of economic geography and trade theories rely on specific technical assumptions, notably, CES utilities. Krugman’s (1979) general approach to monopolistic competition avoid this limitation, but has too narrow use. We expand it now to a family of multisector models and to additional effects of comparative statics. It turnes out that under market growth the price for varieties can go up or down, depending upon Arrow- Pratt measure of concavity of the utility function, does it decrease or increase. Welfare and number of firms also can increase or decrease. There can be asymmetric equilibria, multiple equilibria and related catastrophic shocks.

Suggested Citation

  • Kokovin Sergey & Zhelobodko Evgeniy, 2009. "Generalized Comparative Statics under Monopolistic Competition:Anti-competitive Paradox, Immiserizing Growth, Catastrophes," EERC Working Paper Series 09/09e, EERC Research Network, Russia and CIS.
  • Handle: RePEc:eer:wpalle:09/09e
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    References listed on IDEAS

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    More about this item

    JEL classification:

    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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