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U.S. inequality: Debt constraints or incomplete asset markets?

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  • Cordoba, Juan-Carlos

Abstract

To examine the role of debt constraints and incomplete asset markets (lack of insurance markets) in explaining U.S. inequality, we run horse races between competing models. For a widely used model, we decompose inequality into its fundamental driving forces. The underlying source of inequality in all models is uninsurable idiosyncratic risk. Both debt constraints and incomplete asset markets are needed to account for inequality, but asset market incompleteness is the key friction. It better accounts for the concentration and dispersion of wealth, and is the most costly friction in terms of welfare. Tight debt constraints are important for explaining the lower tail of the wealth distribution.

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  • Cordoba, Juan-Carlos, 2008. "U.S. inequality: Debt constraints or incomplete asset markets?," Journal of Monetary Economics, Elsevier, vol. 55(2), pages 350-364, March.
    • Handle: RePEc:eee:moneco:v:55:y:2008:i:2:p:350-364
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    2. Reichlin, Pietro, 2018. "Socially Optimal Wealth Inequality," CEPR Discussion Papers 12873, C.E.P.R. Discussion Papers.
    3. Tobias Broer, 2013. "The Wrong Shape of Insurance? What Cross-Sectional Distributions Tell Us about Models of Consumption Smoothing," American Economic Journal: Macroeconomics, American Economic Association, vol. 5(4), pages 107-140, October.
    4. Xavier Mateos-Planas & Giulio Seccia, 2013. "Consumer Default with Complete Markets: Default-based Pricing and Finite Punishment," Working Papers 711, Queen Mary University of London, School of Economics and Finance.
    5. Athreya, Kartik B., 2014. "Big Ideas in Macroeconomics: A Nontechnical View," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262019736, April.
    6. Sofía Bauducco & Gonzalo Castex, 2013. "The Wealth Distribution in Developing Economies: Comparing the United States to Chile," Working Papers Central Bank of Chile 702, Central Bank of Chile.
    7. Sofía Bauducco & Gonzalo Castex & Andrew Davis, 2019. "The wealth distribution in developed and developing economies: comparing the United States to Chile using survey data from 2007," Journal Economía Chilena (The Chilean Economy), Central Bank of Chile, vol. 22(3), pages 154-203, December.
    8. Ábrahám, Árpád & Cárceles-Poveda, Eva, 2010. "Endogenous trading constraints with incomplete asset markets," Journal of Economic Theory, Elsevier, vol. 145(3), pages 974-1004, May.
    9. Feigenbaum, James, 2011. "Precautionary saving or denied dissaving," Economic Modelling, Elsevier, vol. 28(4), pages 1559-1572, July.
    10. Tom Krebs & Moritz Kuhn & Mark L. J. Wright, 2015. "Human Capital Risk, Contract Enforcement, and the Macroeconomy," American Economic Review, American Economic Association, vol. 105(11), pages 3223-3272, November.
    11. Xavier Mateos-Planas & Giulio Seccia, 2014. "Consumer default with complete markets: default-based pricing and finite punishment," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 56(3), pages 549-583, August.
    12. Tobias Broer, 2009. "Stationary equilibrium distributions in economies with limited commitment," Economics Working Papers ECO2009/39, European University Institute.
    13. Pietro Reichlin, 2020. "Social welfare, parental altruism, and inequality," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 22(5), pages 1391-1419, September.
    14. Frank A. Cowell & Philippe Kerm, 2015. "Wealth Inequality: A Survey," Journal of Economic Surveys, Wiley Blackwell, vol. 29(4), pages 671-710, September.
    15. Xavier Mateos-Planas & Giulio Seccia, 2013. "Consumer Default with Complete Markets: Default-based Pricing and Finite Punishment," Working Papers 711, Queen Mary University of London, School of Economics and Finance.

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