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Politico economic consequences of rising income inequality


  • Dean Corbae
  • Pablo D'Erasmo
  • Burhanettin Kuruscu

    () (Economics University of Texas at Austin)


This paper develops a political economy model to evaluate how inequality affects policies via the political process. The model is an extension of Krusell and Rios-Rull (1999) to incorporate uninsured idiosyncratic risk to income. Using this framework, we evaluate the response of social insurance policies to rising income inequality. An important feature of dynamic political economy models that incorporate inequality is that policy outcomes affect the evolution of wealth distribution. At the same time, the distribution of wealth affects policy outcomes. These two features make it difficult to solve such models since distribution of wealth is generally a high dimensional object. We tackle this computational problem using the Krusell-Smith (1998) algorithm: we use the mean and the median of the wealth distribution to predict the evolution of prices and political outcomes.

Suggested Citation

  • Dean Corbae & Pablo D'Erasmo & Burhanettin Kuruscu, 2006. "Politico economic consequences of rising income inequality," 2006 Meeting Papers 878, Society for Economic Dynamics.
  • Handle: RePEc:red:sed006:878

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    More about this item


    Inequality; politico - economic equilibrium;

    JEL classification:

    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials


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