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LIFE INSURANCE AND PENSION CONTRACTS II: THE LIFE CYCLE MODEL WITH RECURSIVE UTILITY

Published online by Cambridge University Press:  11 November 2015

Knut K. Aase*
Affiliation:
Department of Business and Management Science, The Norwegian School of Economics, 5045 Bergen, Norway
*

Abstract

We analyze optimal consumption and pension insurance during the life time of a consumer using the life cycle model, when the consumer has recursive utility. The relationship between substitution of consumption and risk aversion is highlighted, and clarified by the introduction of this type of preferences. We illustrate how recursive utility can be used to explain the empirical consumption puzzle for aggregates. This indicates a plausible choice for the parameters of the utility function, relevant for the consumer in the life cycle model. Optimal life insurance is considered, as well as the portfolio choice problem related to optimal exposures in risky securities. A major finding is that it is optimal for the typical insurance buyer to smooth adverse shocks to the financial market, unlike what is implied by the conventional model. This has implications for what type of contracts the life and pension insurance industry should offer.

Type
Research Article
Copyright
Copyright © Astin Bulletin 2015 

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References

Aase, K.K. (2014) Recursive Utility using the Stochastic Maximum Principle. Working Paper n. 3, Department of Business and Management Science, Norwegian School of Economics, Bergen, Norway.Google Scholar
Aase, K.K. (2015) Life insurance and pension contracts I: The time additive life cycle model. Astin Bulletin, 45 (1), 147.CrossRefGoogle Scholar
Bensoussan, A. (1983) Lectures on Stochastic Control. Lecture Notes in Mathematics vol. 972, pp. 162. Berlin: Springer.Google Scholar
Bismut, J.-M. (1978) An introductory approach to duality in optimal stochastic control. SIAM Review, 20 (1), 6278.CrossRefGoogle Scholar
Breeden, D. (1979) An intertemporal asset pricing model with stochastic consumption and investment opportunities. Journal of Financial Economics, 7, 265296.CrossRefGoogle Scholar
Cox, J.C. and Huang, C.F. (1989) Optimal consumption and portfolio rules when asset prices follow a diffusion process. Journal of Economic Theory, 49 (1), 3383.CrossRefGoogle Scholar
Duffie, D. (2001) Dynamic Asset Pricing Theory. 3rd ed.Princeton and Oxford: Princeton University Press.Google Scholar
Duffie, D. and Epstein, L. (1992a) Asset pricing with stochastic differential utility. Review of Financial Studies, 5, 411436.CrossRefGoogle Scholar
Duffie, D. and Epstein, L. (1992b) Stochastic differential utility. Econometrica, 60, 353394.CrossRefGoogle Scholar
Duffie, D. and Lions, P.-L. (1992) PDE solutions of stochastic differential utility. Journal of Mathematical Economics, 21, 577606.CrossRefGoogle Scholar
Duffie, D. and Skiadas, C. (1994) Continuous-time security pricing. A utility gradient approach. Journal of Mathematical Economics, 23, 107131.CrossRefGoogle Scholar
Epstein, L. and Zin, S. (1989) Substitution, risk aversion, and the temporal behavior of consumption and asset returns: A theoretical framework. Econometrica, 57, 937–69.CrossRefGoogle Scholar
Fisher, S. (1973) A life cycle model of life insurance purchases. International Economics Review, 14 (1), 132152.CrossRefGoogle Scholar
Hakansson, N.H. (1969) Optimal investment and consumption strategies under risk, an uncertain lifetime, and insurance. International Economic Review, 19 (3), 443466.CrossRefGoogle Scholar
Hu, Y. and Peng, S. (1995) Solution of forward-backward stochastic differential equations. Probability Theory Related Fields, 103, 273285.CrossRefGoogle Scholar
Kreps, D. (1988) Notes on the Theory of Choice. Underground Classics in Economics. Boulder and London: Westview Press.Google Scholar
Kreps, D. and Porteus, E. (1978) Temporal resolution of uncertainty and dynamic choice theory. Econometrica, 46, 185200.CrossRefGoogle Scholar
Kushner, N.J. (1972) “Necessary conditions for continuous parameter stochastic optimization problems.” SIAM Journal on Control and Optimization, 10, 550565.CrossRefGoogle Scholar
Lucas, R. (1978) Asset prices in an exchange economy. Econometrica, 46, 14291445.CrossRefGoogle Scholar
Mehra, R. and Prescott, E.C. (1985) The equity premium: A puzzle. Journal of Monetary Economics, 22, 133136.CrossRefGoogle Scholar
Merton, R.C. (1969) Lifetime portfolio selection under uncertainty: The continuous-time case. The Review of Economics and Statistics, 51 (3), 247–57.CrossRefGoogle Scholar
Merton, R.C. (1971) Optimum consumption and portfolio rules in a continuous-time model. Journal of Economic Theory, 2 (4), 373413.CrossRefGoogle Scholar
Mossin, J. (1966) Equilibrium in a capital asset market. Econometrica, 34, 768783.CrossRefGoogle Scholar
Mossin, J. (1968) Optimal multiperiod portfolio policies. Journal of Business, 41, 215229.CrossRefGoogle Scholar
Mossin, J. (1969) A note on uncertainty and preferences in a temporal context. The American Economic Review, 59 (1), 172174.Google Scholar
Øksendal, B. and Sulem, A. (2014) Risk minimization in financial markets modeled by It ô-Levy processes. Afrika Matematika, Online 18.05.2014.Google Scholar
Peng, S. (1990) A general stochastic maximum principle for optimal control problems. SIAM Journal on Control Optimization, 28 (4), 966979.CrossRefGoogle Scholar
Pliska, S. (1986) A stochastic calculus model of continuous trading: Optimal portfolios. Mathematics of Operations Research, 11, 371382.CrossRefGoogle Scholar
Pontryagin, L.S. (1959) “Optimal control processes.” Usp. Mat. Nauk.Google Scholar
Ramsey, F.P. (1928) A Mathematical theory of saving. Economic Journal, December, 28 (128), 543559.CrossRefGoogle Scholar
Samuelson, P.A. (1969) Lifetime portfolio selection by dynamic stochastic programming. Review of Economics and Statistics, 51 (3), 239246.CrossRefGoogle Scholar
Schroder, M. and Skiadas, C. (1999) Optimal consumption and portfolio selection with stochastic differential utility. Journal of Economic Theory, 89, 68126.CrossRefGoogle Scholar
Weil, P. (1989) The equity premium puzzle and the risk-free rate puzzle. Journal of Monetary Economics, 24, 501521.CrossRefGoogle Scholar
Yaari, M.E. (1965) Uncertain lifetime, life insurance, and the theory of the consumer. The Review of Economic Studies, 32 (2), 137150.CrossRefGoogle Scholar