Evaluating Risky Consumption Paths: The Role of Intertemporal Substitutability
In dynamic stochastic welfare comparisons, a failure clearly to distinguish between risk aversion and intertemporal substitutability can result in misleading assessments of the impact of risk aversion on the welfare costs of consumption-risk changes. The problem arises in any setting in which uncertainty is propagated over time, notably, but not exclusively, in economies with stochastic consumption trends. Regardless of the preference setup adopted, an increase in risk aversion amplifies the per-period costs of risks. The weights consumers use to cumulate the per-period costs of risks with persistent effects should, however, depend on intertemporal substitutability as well as on risk aversion. Under time-separable expected-utility preferences, an increase in the period utility function's curvature therefore alters the welfare effect of risk for reasons that in part are unrelated to risk aversion.
|Date of creation:||Jan 1995|
|Date of revision:|
|Publication status:||published as European Economic Review, August 1994|
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- Harold L. Cole & Maurice Obstfeld, 1989.
"Commodity Trade and International Risk Sharing: How Much Do Financial Markets Matter?,"
NBER Working Papers
3027, National Bureau of Economic Research, Inc.
- Cole, Harold L. & Obstfeld, Maurice, 1991. "Commodity trade and international risk sharing : How much do financial markets matter?," Journal of Monetary Economics, Elsevier, vol. 28(1), pages 3-24, August.
- Dixit, Avinash & Rob, Rafael, 1994. "Risk-sharing, adjustment, and trade," Journal of International Economics, Elsevier, vol. 36(3-4), pages 263-287, May.
- Imrohoruglu, Ayse & Prescott, Edward C, 1991.
"Seigniorage as a Tax: A Quantitative Evaluation,"
Journal of Money, Credit and Banking,
Blackwell Publishing, vol. 23(3), pages 462-75, August.
- Ayse Imrohoroglu & Edward C. Prescott, 1991. "Seigniorage as a tax: a quantitative evaluation," Staff Report 132, Federal Reserve Bank of Minneapolis.
- Imrohoroglu, A. & Prescott, E.C., 1991. "Seigniorage As a Tax : A Quantitative Evaluation," Papers 91-3, Southern California - School of Business Administration.
- Epstein, Larry G & Zin, Stanley E, 1989. "Substitution, Risk Aversion, and the Temporal Behavior of Consumption and Asset Returns: A Theoretical Framework," Econometrica, Econometric Society, vol. 57(4), pages 937-69, July.
- Robert E. Hall, 1981.
"Intertemporal Substitution in Consumption,"
NBER Working Papers
0720, National Bureau of Economic Research, Inc.
- Kocherlakota, Narayana R, 1990. " Disentangling the Coefficient of Relative Risk Aversion from the Elasticity of Intertemporal Substitution: An Irrelevance Result," Journal of Finance, American Finance Association, vol. 45(1), pages 175-90, March.
- repec:fth:harver:1435 is not listed on IDEAS
- John Y. Campbell & N. Gregory Mankiw, 1989.
"Consumption, Income and Interest Rates: Reinterpreting the Time Series Evidence,"
in: NBER Macroeconomics Annual 1989, Volume 4, pages 185-246
National Bureau of Economic Research, Inc.
- John Y. Campbell & N. Gregory Mankiw, 1989. "Consumption, Income, and Interest Rates: Reinterpreting the Time Series Evidence," NBER Working Papers 2924, National Bureau of Economic Research, Inc.
- Shmuel Kandel & Robert F. Stambaugh, 1991.
"Asset Returns and Intertemporal Preferences,"
NBER Working Papers
3633, National Bureau of Economic Research, Inc.
- Merton, Robert C., 1971.
"Optimum consumption and portfolio rules in a continuous-time model,"
Journal of Economic Theory,
Elsevier, vol. 3(4), pages 373-413, December.
- R. C. Merton, 1970. "Optimum Consumption and Portfolio Rules in a Continuous-time Model," Working papers 58, Massachusetts Institute of Technology (MIT), Department of Economics.
- Kenneth L. Judd, 1991. "Minimum weighted residual methods for solving aggregate growth models," Discussion Paper / Institute for Empirical Macroeconomics 49, Federal Reserve Bank of Minneapolis.
- Imrohoruglu, Ayse, 1989. "Cost of Business Cycles with Indivisibilities and Liquidity Constraints," Journal of Political Economy, University of Chicago Press, vol. 97(6), pages 1364-83, December.
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