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Monopolistic Competition, Optimum Product Diversity, and International Trade - The Role of Factor Endowment and Factor Intensities

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  • Marjit, Sugata
  • Mandal, Biswajit

Abstract

In this paper we revisit the influential theory of monopolistic competition and optimum product variety as developed by Dixit and Stiglitz (1977) with applications in international trade by Krugman (1979,1980), by modeling fixed and variable costs of production in terms of underlying use of skilled and unskilled labor in a single good model. This is different from earlier work on multi sector variant of Krugman cum Heckscher-Ohlin-Samuelson model such as Helpman (1981) and others. In our structure factor endowment and factor intensities determine both number of varieties and output per variety in a closed economy mimicking the features of Heckscher-Ohlin-Samuelson model. Differences in factor endowments across countries determine the pattern of trade between varieties and output per variety, which is indeterminate in a standard single good Dixit-Stiglitz-Krugman model. Later we reflect on wage inequality and unemployment providing some interesting results.

Suggested Citation

  • Marjit, Sugata & Mandal, Biswajit, 2021. "Monopolistic Competition, Optimum Product Diversity, and International Trade - The Role of Factor Endowment and Factor Intensities," GLO Discussion Paper Series 911, Global Labor Organization (GLO).
    • Handle: RePEc:zbw:glodps:911
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    References listed on IDEAS

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    More about this item

    Keywords

    Monopolistic Competition; Trade; Wage Inequality; Unemployment;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • F11 - International Economics - - Trade - - - Neoclassical Models of Trade
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity

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