The effects of uncertainty on optimal consumption
When marginal utility is convex and there is pure labour income uncertainty, certain results are well-known. Asset return uncertainty is often assumed to have qualitatively similar effects; see e.g. Skinner (1988). We show that this assumption is not correct. Asset return uncertainty gives rise to an additional term in the Euler equation, which by introducing a role for current cash-in-hand, may work in the opposite direction to the precautionary motive, leading to ambiguity in the slope of the expected consumption time profile. We present a linearised version of the Euler equation, and an associated closed form solution, in order to provide intuition for these results. Numerical analysis indicates that the approximation is reasonable for empirically plausible estimates of the variances of the underlying disturbances.
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- Christopher D. Carroll & Miles S. Kimball, 1995.
"On the concavity of the consumption function,"
Finance and Economics Discussion Series
95-10, Board of Governors of the Federal Reserve System (U.S.).
- 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.
- Deaton, Angus, 1992. "Understanding Consumption," OUP Catalogue, Oxford University Press, number 9780198288244, December.
- Angus Deaton, 1989.
"Saving and Liquidity Constraints,"
NBER Working Papers
3196, National Bureau of Economic Research, Inc.
- Miles, David, 1997. "A Household Level Study of the Determinants of Incomes and Consumption," Economic Journal, Royal Economic Society, vol. 107(440), pages 1-25, January.
- Olivier Jean Blanchard & Stanley Fischer, 1989. "Lectures on Macroeconomics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262022834.
- Stephen P. Zeldes, 1989. "Optimal Consumption with Stochastic Income: Deviations from Certainty Equivalence," The Quarterly Journal of Economics, Oxford University Press, vol. 104(2), pages 275-298.
- Philippe Weil, 1993. "Precautionary Savings and the Permanent Income Hypothesis," Review of Economic Studies, Oxford University Press, vol. 60(2), pages 367-383.
- Siegel, Jeremy J., 1992. "The real rate of interest from 1800-1990 : A study of the U.S. and the U.K," Journal of Monetary Economics, Elsevier, vol. 29(2), pages 227-252, April.
- Christopher D Carroll, 1997.
"Death to the Log-Linearized Consumption euler Equation! (And Very Poor Health to the Second-Order Approximation),"
Economics Working Paper Archive
390, The Johns Hopkins University,Department of Economics.
- Carroll Christopher Dixon, 2001. "Death to the Log-Linearized Consumption Euler Equation! (And Very Poor Health to the Second-Order Approximation)," The B.E. Journal of Macroeconomics, De Gruyter, vol. 1(1), pages 1-38, April.
- Christopher D. Carroll, 1997. "Death to the Log-Linearized Consumption Euler Equation! (And Very Poor Health to the Second-Order Approximation)," NBER Working Papers 6298, National Bureau of Economic Research, Inc.
- Gabriel Talmain, 1994. "Exact and Approximate Solutions to the Problem of Precautionary Savings," Discussion Papers 94-04, University at Albany, SUNY, Department of Economics.
- Frederick van der Ploeg, 1993. "A Closed-form Solution for a Model of Precautionary Saving," Review of Economic Studies, Oxford University Press, vol. 60(2), pages 385-395.
- Binder, M. & Pesaran, M. H. & Samiei, S. H., 1998. "Analytical and Numerical Solution of Finite-horizon Nonlinear Rational Expectations Models," Cambridge Working Papers in Economics 9808, Faculty of Economics, University of Cambridge.
- Blanchard, Olivier J, 1985.
"Debt, Deficits, and Finite Horizons,"
Journal of Political Economy,
University of Chicago Press, vol. 93(2), pages 223-247, April.
- Caballero, Ricardo J, 1991. "Earnings Uncertainty and Aggregate Wealth Accumulation," American Economic Review, American Economic Association, vol. 81(4), pages 859-871, September.
- Neave, Edwin H., 1971. "Multiperiod consumption-investment decisions and risk preference," Journal of Economic Theory, Elsevier, vol. 3(1), pages 40-53, March.
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