Near-Rationality, Heterogeneity and Aggregate Consumption
The simple permanent income model provides a good description of the medium-long run behavior of aggregate nondurables consumption, while it fails in describing its short run behavior. In this paper I present a non-representative agent model with near-rational microeconomic units that simultaneously explains the observed excess smoothness of consumption to wealth innovations, the excess sensitivity of consumption to lagged income changes, as well as small conditional asymmetries found in the data. In spite of the presence of large non-diversifiable idiosyncratic uncertainty, the estimated dollar equivalent utility cost of the micreconomic near-rational strategy required to explain the aggregate facts is only 0.26y percent of consumption per year, where y is the coefficient of relative risk aversion.
|Date of creation:||Mar 1992|
|Publication status:||published as Journal of Money, Credit and Banking, February 1995|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
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- John H. Cochrane, 1988.
"The Sensitivity of Tests of the Intertemporal Allocation of Consumption to Near-Rational Alternatives,"
NBER Working Papers
2730, National Bureau of Economic Research, Inc.
- Cochrane, John H, 1989. "The Sensitivity of Tests of the Intertemporal Allocation of Consumption to Near-Rational Alternatives," American Economic Review, American Economic Association, vol. 79(3), pages 319-337, June.
- Akerlof, George A & Yellen, Janet L, 1985. "Can Small Deviations from Rationality Make Significant Differences to Economic Equilibria?," American Economic Review, American Economic Association, vol. 75(4), pages 708-720, September.
- Hall, Robert E, 1978. "Stochastic Implications of the Life Cycle-Permanent Income Hypothesis: Theory and Evidence," Journal of Political Economy, University of Chicago Press, vol. 86(6), pages 971-987, December.
- Caballero, Ricardo J, 1993.
"Durable Goods: An Explanation for Their Slow Adjustment,"
Journal of Political Economy,
University of Chicago Press, vol. 101(2), pages 351-384, April.
- Ricardo J. Caballero, 1991. "Durable Goods: An Explanation for Their Slow Adjustment," NBER Working Papers 3748, National Bureau of Economic Research, Inc.
- Robert E. Hall, 1987. "Consumption," NBER Working Papers 2265, National Bureau of Economic Research, Inc.
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