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Inequality and Growth: A Joint Analysis of Demand and Supply

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  • Shen, Ling

Abstract

Empirical evidence on the relationship between a country?s wealth inequality and economic growth is ambiguous. This paper provides reasonable explanations of this ambiguity. We investigate the implications which the shape of wealth distribution has for economic growth in a framework combining the Schumpeterian quality improvement model and the neoclassic production function. Since two types of individuals are assumed, the poor and the rich, the Gini-coefficient is decomposed in two variables, namely the relative wealth of the poor and the population share of the poor, each having a different effect on economic performance. Particularly in the separating equilibrium, an improvement in the relative wealth of the poor impedes economic growth, but a decline in the population share of the poor enhances economic growth. This suggests that empirical research on the base of the Gini-coefficient cannot generate a general relationship between wealth inequality and economic growth. Moreover, the impact of wealth inequality on economic growth is through the supply of human capital as well as the demand for better quality goods. Hence, the relationship between wealth inequality and economic growth is non-linear.

Suggested Citation

  • Shen, Ling, 2006. "Inequality and Growth: A Joint Analysis of Demand and Supply," Bonn Econ Discussion Papers 6/2006, University of Bonn, Bonn Graduate School of Economics (BGSE).
    • Handle: RePEc:zbw:bonedp:62006
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    References listed on IDEAS

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    More about this item

    Keywords

    inequality; growth;

    JEL classification:

    • O12 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • O15 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Economic Development: Human Resources; Human Development; Income Distribution; Migration

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