Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-04T19:48:06.587Z Has data issue: false hasContentIssue false

Truncated Stop Loss as Optimal Reinsurance Agreement in One-period Models

Published online by Cambridge University Press:  17 April 2015

Marek Kaluszka*
Affiliation:
Institute of Mathematics, Technical University of Lodz, UL. Zwirki 36, 90-924 Lodz – Poland, E-mail: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We consider several one-period reinsurance models and derive a rule which minimizes the ruin probability of the cedent for a fixed reinsurance risk premium. The premium is calculated according to the economic principle, generalized zero-utility principle, Esscher principle or mean-variance principles. It turns out that a truncated stop loss is an optimal treaty in the class of all reinsurance contracts. The result is also valid for models not involving ruin probability. An example is the Arrow model with the Kahneman-Tversky value function.

Type
Articles
Copyright
Copyright © ASTIN Bulletin 2005

References

Arrow, K.J. (1963) Uncertainty and the welfare economics of medical care. American Economic Review, 53, 941973.Google Scholar
Asmussen, S., Højgaard, B. and Taksar, M. (2000) Optimal risk control and dividend distribution policies. Example of excess-of-loss reinsurance for an insurance corporation. Finance and Stochastics, 4, 299324.CrossRefGoogle Scholar
Asmussen, S. (2000) Ruin probabilities. World Scientific, Singapore.CrossRefGoogle Scholar
Bühlmann, H. (1980) An economic principle. ASTIN Bulletin, 11, 5260.CrossRefGoogle Scholar
Bühlmann, H. (1984) The general economic premium principle. ASTIN Bulletin, 14, 1321.CrossRefGoogle Scholar
Embrechts, P. (2000) Actuarial versus financial pricing of insurance. Risk Finance, 1, 1726.CrossRefGoogle Scholar
Gómez-Déniz, E., Hernández-Bastida, A. and Vázquez-Polo, F.J. (1999) The Esscher premium principle in risk theory: a Bayesian sensitivity study. Insurance: Mathematics and Economics, 25, 387395.Google Scholar
Gaier, J., Grandits, P. and Schachermayer, W. (2003) Asymptotic ruin probabilities and optimal investment. Ann. Appl. Probab., 13, 10541076.CrossRefGoogle Scholar
Gajek, L. and Zagrodny, D. (2003) Oral communication.Google Scholar
Gajek, L. and Zagrodny, D. (2004) Reinsurance arrangements maximizing insurer’s survival probability. Journal of Risk and Insurance, 71, 421435.CrossRefGoogle Scholar
Gerber, H.U. (1979) An Introduction to Mathematical Risk Theory. S.S. Huebner Foundation for Insurance Education, Wharton School, University of Pennsylvania, Philadelphia.Google Scholar
Gerber, H.U. and Shiu, E.S.W. (2004) Optimal dividends: analysis with brownian motion. North American Actuarial Journal, 8, 120.CrossRefGoogle Scholar
Goovaerts, M.J., De Vylder, F. and Haezendonck, J. (1984) Insurance Premiums. North-Holland Publishing Co., Amsterdam.Google Scholar
Goovaerts, M.J., Kaas, R., Dhaene, J., and Tang, Q. (2003) A unified approach to generate risk measures. Working paper, University of Leuven.Google Scholar
Grandell, J. (1991) Aspects of Risk Theory. Springer-Verlag, New York.CrossRefGoogle Scholar
Hipp, Ch. (2004) Stochastic Control with Application in Insurance. Lecture Notes in Mathematics, Vol. 1856, Springer-Verlag.Google Scholar
Hipp, Ch. and Plum, M. (2003) Optimal investment for insurers with state dependent income, and for insurers. Finance and Stochastics, 7, 299321.CrossRefGoogle Scholar
Hipp, Ch. (2003) Optimal dividend payment under a ruin constraint: discrete time and state space. (http://www.astin2003.de/img/papers/hipp.pdf)CrossRefGoogle Scholar
Hipp, Ch. and Vogt, M. (2003) Optimal dynamic XL reinsurance. ASTIN Bulletin, 33, 193207.CrossRefGoogle Scholar
Højgaard, B. and Taksar, M. (1998) Optimal proportional reinsurance policies for diffusion models. Scandinavian Actuarial Journal, 1, 166168.CrossRefGoogle Scholar
Højgaard, B. and Taksar, M. (1999) Controlling risk exposure and dividends payout schemes: insurance company example. Mathematical Finance, 9, 153182.CrossRefGoogle Scholar
Højgaard, B. and Taksar, M. (2001) Optimal risk control for a large corporation in the presence of returns on investments. Finance and Stochastics, 5, 527547.CrossRefGoogle Scholar
Irgens, Ch. and Paulsen, J. (2004) Optimal control of risk exposure, reinsurance and investments for insurance portfolios. Insurance: Mathematics and Economics, 35, 2151.Google Scholar
Irgens, Ch. and Paulsen, J. (2003) Maximizing terminal utility by controlling risk exposure; a discrete-time dynamic control approach. (http://www.mi.uib.no/~jostein/wpaper.html)Google Scholar
Kahneman, D. and Tversky, A. (1979) Prospect Theory: An analysis of decision under risk. Econometrica, 47, 263291.CrossRefGoogle Scholar
Kaluszka, M. (2004a) An extension of the Gerber-Bühlmann-Jewell conditions for optimal risk sharing. ASTIN Bulletin, 34, 2748.CrossRefGoogle Scholar
Kaluszka, M. (2004b) Mean-variance optimal reinsurance arrangements. Scandinavian Actuarial Journal, 1, 2841.CrossRefGoogle Scholar
Kaluszka, M. (2004c) An extension of Arrow’s result on optimality of a stop loss contract. Insurance: Mathematics and Economics, 35, 527536.Google Scholar
Pechlivanides, P.M. (1978) Optimal reinsurance and dividend payment strategies. ASTIN Bulletin, 10, 3446.CrossRefGoogle Scholar
Rantala, J. (1989) On experience rating and optimal reinsurance. ASTIN Bulletin, 19, 153178.CrossRefGoogle Scholar
Rolski, T., Schmidli, H., Schmidt, V. and Teugels, J. (1999) Stochastic Processes for Insurance and Finance. John Wiley & Sons, Chichester.CrossRefGoogle Scholar
Rytgaard, M.M. (2004) Stop loss reinsurance. Encyclopedia of Actuarial Science, John Wiley & Sons, Chichester.Google Scholar
Schäl, M. (2003) Stochastic optimization for the ruin probability. Proc. Appl. Math. Mech., 3, 1719.CrossRefGoogle Scholar
Schäl, M. (2004) On discrete-time dynamic programming in insurance: exponential utility and minimizing the ruin probability. Scandinavian Actuarial Journal, 3, 189210.CrossRefGoogle Scholar
Schmidli, H. (2001) Optimal proportional reinsurance policies in a dynamic setting. Scandinavian Actuarial Journal, 2, 5568.CrossRefGoogle Scholar
Schmidli, H. (2002) On minimizing the ruin probability by investment and reinsurance. Ann. Appl. Probab., 12, 890907.CrossRefGoogle Scholar
Taksar, M.I. and Markussen, Ch. (2003) Optimal dynamic reinsurance policies for large insurance portfolios. Finance and Stochastics, 7, 97121.CrossRefGoogle Scholar
Verlaak, R. and Beirlant, J. (2003) Optimal reinsurance programs: an optimal combination of several reinsurance protections on a heterogeneous insurance portfolio. Insurance: Mathematics and Economics, 33, 381403.Google Scholar
Wang, S.S. (2003) Equilibrium pricing transforms: new results using Bühlmann’s 1980 economic model. ASTIN Bulletin, 33, 5773.CrossRefGoogle Scholar
Young, V.R. (2004) Premium principles. Encyclopedia of Actuarial Science, John Wiley & Sons, Chichester.Google Scholar