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Decomposing changes in income risk using consumption data

  • Richard Blundell

    ()

    (Institute for Fiscal Studies and University College London)

  • Hamish Low

    ()

    (Institute for Fiscal Studies and Trinity College, Cambridge)

  • Ian Preston

    ()

    (Institute for Fiscal Studies and University College London)

This paper concerns the decomposition of income risk into permanent and transitory components using repeated cross-section data on income and consumption. Our focus is on the detection of changes in the magnitudes of variances of permanent and transitory risks. A new approximation to the optimal consumption growth rule is developed. Evidence from a dynamic stochastic simulation is used to show that this approximation can provide a robust method for decomposing income risk in a nonstationary environment. We examine robustness to unobserved heterogeneity in consumption growth and to unobserved heterogeneity in income growth. We use this approach to investigate the growth in income inequality in the UK in the 1980s.

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Paper provided by Institute for Fiscal Studies in its series IFS Working Papers with number W08/13.

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Length: 54 pp.
Date of creation: Nov 2008
Date of revision:
Handle: RePEc:ifs:ifsewp:08/13
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  10. 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.
  11. Mace, Barbara J, 1991. "Full Insurance in the Presence of Aggregate Uncertainty," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 928-56, October.
  12. Gosling, Amanda & Machin, Stephen & Meghir, Costas, 2000. "The Changing Distribution of Male Wages in the U.K," Review of Economic Studies, Wiley Blackwell, vol. 67(4), pages 635-66, October.
  13. Orazio P. Attanasio & Guglielmo Weber, 1994. "Is Consumption Growth Consistent with Intertemporal Optimization? Evidence from the Consumer Expenditure Survey," NBER Working Papers 4795, National Bureau of Economic Research, Inc.
  14. Fatih Guvenen, 2006. "Learning your earning: are labor income shocks really very persistent?," Discussion Paper / Institute for Empirical Macroeconomics 145, Federal Reserve Bank of Minneapolis.
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  16. Altug, Sumru & Miller, Robert A, 1990. "Household Choices in Equilibrium," Econometrica, Econometric Society, vol. 58(3), pages 543-70, May.
  17. Richard Blundell & Ian Preston, 1997. "Consumption, inequality and income uncertainty," IFS Working Papers W97/15, Institute for Fiscal Studies.
  18. Richard Blundell & Ian Preston, 1995. "Income, expenditure and the living standards of UK households," Fiscal Studies, Institute for Fiscal Studies, vol. 16(3), pages 40-54, August.
  19. Campbell, John, 1993. "Intertemporal Asset Pricing Without Consumption Data," Scholarly Articles 3221491, Harvard University Department of Economics.
  20. Thomas Piketty & Emmanuel Saez, 2003. "Income Inequality In The United States, 1913-1998," The Quarterly Journal of Economics, MIT Press, vol. 118(1), pages 1-39, February.
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  22. Steven Haider & Gary Solon, 2006. "Life-Cycle Variation in the Association between Current and Lifetime Earnings," American Economic Review, American Economic Association, vol. 96(4), pages 1308-1320, September.
  23. Richard V. Burkhauser & John G. Poupore, 1997. "A Cross-National Comparison Of Permanent Inequality In The United States And Germany," The Review of Economics and Statistics, MIT Press, vol. 79(1), pages 10-17, February.
  24. Christopher D Carroll, 1990. "Buffer-Stock Saving and the Life Cycle/Permanent Income Hypothesis," Economics Working Paper Archive 371, The Johns Hopkins University,Department of Economics, revised Aug 1996.
  25. Orazio Attanasio & Steven J. Davis, 1994. "Relative Wage Movements and the Distribution of Consumption," NBER Working Papers 4771, National Bureau of Economic Research, Inc.
  26. Amanda Gosling & Stephen Machin, 1994. "Trade Unions and the Dispersion of Earnings in British Establishments, 1980-90," NBER Working Papers 4732, National Bureau of Economic Research, Inc.
  27. MaCurdy, Thomas E., 1982. "The use of time series processes to model the error structure of earnings in a longitudinal data analysis," Journal of Econometrics, Elsevier, vol. 18(1), pages 83-114, January.
  28. Jonathan Heathcote & Kjetil Storesletten & Giovanni L. Violante, 2007. "Insurance and Opportunities: A Welfare Analysis of Labor Market Risk," NBER Working Papers 13673, National Bureau of Economic Research, Inc.
  29. Richard Blundell & Luigi Pistaferri & Ian Preston, 2004. "Consumption inequality and partial insurance," IFS Working Papers W04/28, Institute for Fiscal Studies.
  30. 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.
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