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Heterogeneous Life-Cycle Profiles, Income Risk and Consumption Inequality

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Author Info
Giorgio E. Primiceri () (Northwestern University, NBER and CEPR)
Thijs van Rens () (CREI, Universitat Pompeu Fabra, CEPR and IZA)

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Abstract

Was the increase in income inequality in the US due to permanent shocks or merely to an increase in the variance of transitory shocks? The implications for consumption and welfare depend crucially on the answer to this question. We use CEX repeated cross-section data on consumption and income to decompose idiosyncratic changes in income into predictable lifecycle changes, transitory and permanent shocks and estimate the contribution of each to total inequality. Our model fits the joint evolution of consumption and income inequality well and delivers two main results. First, we find that permanent changes in income explain all of the increase in inequality in the 1980s and 90s. Second, we reconcile this finding with the fact that consumption inequality did not increase much over this period. Our results support the view that many permanent changes in income are predictable for consumers, even if they look unpredictable to the econometrician, consistent with models of heterogeneous income profiles.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 3239.

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Length: 40 pages
Date of creation: Dec 2007
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Handle: RePEc:iza:izadps:dp3239

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Related research
Keywords: consumption; inequality; risk; incomplete markets; heterogeneity;

Other versions of this item:

Find related papers by JEL classification:
D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
D91 - Microeconomics - - Intertemporal Choice and Growth - - - Intertemporal Consumer Choice; Life Cycle Models and Saving
E21 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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    Other versions:
  2. Christopher D. Carroll, 2001. "A Theory of the Consumption Function, with and without Liquidity Constraints," Journal of Economic Perspectives, American Economic Association, vol. 15(3), pages 23-45, Summer. [Downloadable!] (restricted)
    Other versions:
  3. Jonathan Heathcote & Kjetil Storesletten & Giovanni L. Violante, 2005. "Two Views of Inequality Over the Life Cycle," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 765-775, 04/05. [Downloadable!] (restricted)
    Other versions:
  4. Richard Blundell & Ian Preston, 1998. "Consumption Inequality And Income Uncertainty," The Quarterly Journal of Economics, MIT Press, vol. 113(2), pages 603-640, May. [Downloadable!] (restricted)
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  5. Krüger, Dirk & Perri, Fabrizio, 2002. "Does Income Inequality Lead to Consumption Inequality?," CEPR Discussion Papers 3583, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  7. Robert A. Moffitt & Peter Gottschalk, 2002. "Trends in the Transitory Variance of Earnings in the United States," Economic Journal, Royal Economic Society, vol. 112(478), pages C68-C73, March. [Downloadable!] (restricted)
  8. Olga gorbachev, 2007. "Did Household Consumption Become More Volatile?," ESE Discussion Papers 161, Edinburgh School of Economics, University of Edinburgh. [Downloadable!]
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  10. Gourinchas, Pierre-Olivier & Parker, Jonathan A, 2001. "The Empirical Importance of Precautionary Saving," CEPR Discussion Papers 2737, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  11. R. Moffitt & P. Gottschalk, . "Trends in the covariance structure of earnings in the United States: 1969-1987," Institute for Research on Poverty Discussion Papers 1001-93, University of Wisconsin Institute for Research on Poverty.
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  14. Pierre-Olivier Gourinchas & Jonathan A. Parker, 2002. "Consumption Over the Life Cycle," Econometrica, Econometric Society, vol. 70(1), pages 47-89, January. [Downloadable!] (restricted)
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  15. Chamberlain, Gary, 1984. "Panel data," Handbook of Econometrics, in: Z. Griliches† & M. D. Intriligator (ed.), Handbook of Econometrics, edition 1, volume 2, chapter 22, pages 1247-1318 Elsevier. [Downloadable!] (restricted)
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  17. Dirk Krueger & Fabrizio Perri, 2002. "Does Income Inequality Lead to Consumption Inequality? Evidence and Theory," NBER Working Papers 9202, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  18. Heathcote, Jonathan & Storesletten, Kjetil & Violante, Giovanni L, 2007. "Consumption and Labour Supply with Partial Insurance: An Analytical Framework," CEPR Discussion Papers 6280, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  19. Richard Blundell & Luigi Pistaferri & Ian Preston, 2004. "Consumption inequality and partial insurance," IFS Working Papers W04/28, Institute for Fiscal Studies. [Downloadable!]
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  20. Peter Gottschalk & Robert Moffitt, 1994. "The Growth of Earnings Instability in the U.S. Labor Market," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 25(1994-2), pages 217-272. [Downloadable!]
  21. Kjetil Storesletten & Chris I. Telmer & Amir Yaron, 2004. "Cyclical Dynamics in Idiosyncratic Labor Market Risk," Journal of Political Economy, University of Chicago Press, vol. 112(3), pages 695-717, June.
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  23. Giorgio Primiceri & Thijs van Rens, 2002. "Inequality over the Business Cycle: Estimating Income Risk using Micro-Data on Consumption," Macroeconomics 0212003, EconWPA. [Downloadable!]
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  24. Fatih Guvenen, 2007. "Learning Your Earning: Are Labor Income Shocks Really Very Persistent?," American Economic Review, American Economic Association, vol. 97(3), pages 687-712, June. [Downloadable!]
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  25. Storesletten, Kjetil & Telmer, Christopher I. & Yaron, Amir, 2004. "Consumption and risk sharing over the life cycle," Journal of Monetary Economics, Elsevier, vol. 51(3), pages 609-633, April. [Downloadable!] (restricted)
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  26. Mark Huggett & Gustavo Ventura & Amir Yaron, 2007. "Sources of Lifetime Inequality," NBER Working Papers 13224, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  27. Storesletten, Kjetil & Telmer, Chris I. & Yaron, Amir, 2001. "The welfare cost of business cycles revisited: Finite lives and cyclical variation in idiosyncratic risk," European Economic Review, Elsevier, vol. 45(7), pages 1311-1339. [Downloadable!] (restricted)
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  28. Fatih Guvenen, 2005. "An Empirical Investigation of Labor Income Processes," Macroeconomics 0508026, EconWPA. [Downloadable!]
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  29. Orazio Attanasio & Erich Battistin & Hidehiko Ichimura, 2004. "What Really Happened to Consumption Inequality in the US?," NBER Working Papers 10338, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Olga gorbachev, 2007. "Did Household Consumption Become More Volatile?," ESE Discussion Papers 161, Edinburgh School of Economics, University of Edinburgh. [Downloadable!]
  2. Pedro Albarrán & Raquel Carrasco & Maite Martínez-Granado, 2007. "Inequality for Wage Earners and Self-Employed: Evidence from Panel Data," Banco de España Working Papers 0734, Banco de España. [Downloadable!]
    Other versions:
  3. Halliday, Timothy, 2009. "Health Inequality over the Life-Cycle," IZA Discussion Papers 4369, Institute for the Study of Labor (IZA). [Downloadable!]
    Other versions:
  4. Jonathan Heathcote & Kjetil Storesletten & Giovanni L. Violante, 2008. "The Macroeconomic Implications of Rising Wage Inequality in the United States," NBER Working Papers 14052, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
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