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Implications of Wealth Heterogeneity For Macroeconomics


  • Christopher D. Carroll


Today’s dominant strain of macroeconomic models supposes that aggregate consumption can be understood by assuming the existence of a ‘representative agent’ whose behavior rationalizes observed outcomes. But representative agent models yield embarrassingly implausible (and empirically inaccurate) descriptions of consumption behavior. When push comes to shove, real-world forecasters (including those at the Fed) properly disregard these implications. As a result, consumption forecasting remains very much a seat-of-the-pants enterprise. I will argue that if the representative agent assumption is replaced with a model that generates wealth heterogeneity that matches the empirical data, the improved model can provide a sensible analysis of economic questions like "What might the consumption response be to economic stimulus payments?"

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  • Christopher D. Carroll, 2012. "Implications of Wealth Heterogeneity For Macroeconomics," Economics Working Paper Archive 597, The Johns Hopkins University,Department of Economics.
  • Handle: RePEc:jhu:papers:597

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    References listed on IDEAS

    1. Tullio Jappelli & Luigi Pistaferri, 2010. "The Consumption Response to Income Changes," Annual Review of Economics, Annual Reviews, vol. 2(1), pages 479-506, September.
    2. Case Karl E. & Quigley John M. & Shiller Robert J., 2005. "Comparing Wealth Effects: The Stock Market versus the Housing Market," The B.E. Journal of Macroeconomics, De Gruyter, vol. 5(1), pages 1-34, May.
    3. Claudia R. Sahm & Matthew D. Shapiro & Joel Slemrod, 2012. "Check in the Mail or More in the Paycheck: Does the Effectiveness of Fiscal Stimulus Depend on How It Is Delivered?," American Economic Journal: Economic Policy, American Economic Association, vol. 4(3), pages 216-250, August.
    4. Carroll, Christopher D. & Slacalek, Jiri & Tokuoka, Kiichi, 2015. "Buffer-stock saving in a Krusell–Smith world," Economics Letters, Elsevier, vol. 132(C), pages 97-100.
    5. Richard Disney & John Gathergood & Andrew Henley, 2010. "House Price Shocks, Negative Equity, and Household Consumption in the United Kingdom," Journal of the European Economic Association, MIT Press, vol. 8(6), pages 1179-1207, December.
    6. Kaplan, Greg & Violante, Giovanni L, 2011. "A Model of the Consumption Response to Fiscal Stimulus Payments," CEPR Discussion Papers 8562, C.E.P.R. Discussion Papers.
    7. Sabelhaus, John & Song, Jae, 2010. "The great moderation in micro labor earnings," Journal of Monetary Economics, Elsevier, vol. 57(4), pages 391-403, May.
    8. David Laibson, 1997. "Golden Eggs and Hyperbolic Discounting," The Quarterly Journal of Economics, Oxford University Press, vol. 112(2), pages 443-478.
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    Cited by:

    1. De Grauwe, Paul & Macchiarelli, Corrado, 2015. "Animal spirits and credit cycles," Journal of Economic Dynamics and Control, Elsevier, vol. 59(C), pages 95-117.
    2. repec:bla:revinw:v:63:y:2017:i:1:p:53-69 is not listed on IDEAS
    3. Barry Z. Cynamon & Steven M. Fazzari, 2017. "Household Income, Demand, and Saving: Deriving Macro Data With Micro Data Concepts," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 63(1), pages 53-69, March.

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