Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T08:10:30.484Z Has data issue: false hasContentIssue false

Optimal Reinsurance Revisited – Point of View of Cedent and Reinsurer

Published online by Cambridge University Press:  09 August 2013

Werner Hürlimann*
Affiliation:
FRSGlobal Switzerland, Seefeldstrasse 69, CH-8008 Zürich, E-mail: [email protected], URL: http://sites.google.com/site/whurlimann/

Abstract

It is known that the partial stop-loss contract is an optimal reinsurance form under the VaR risk measure. Assuming that market premiums are set according to the expected value principle with varying loading factors, the optimal reinsurance parameters of this contract are obtained under three alternative single and joint party reinsurance criteria: (i) strong minimum of the total retained loss VaR measure; (ii) weak minimum of the total retained loss VaR measure and maximum of the reinsurer's expected profit; (iii) weak minimum of the total retained loss VaR measure and minimum of the total variance risk measure. New conditions for financing in the mean simultaneously the cedent's and the reinsurer's required VaR economic capital are revealed for situations of pure risk transfer (classical reinsurance) or risk and profit transfer (design of internal reinsurance or reinsurance captive owned by the captive of a corporate firm).

Type
Research Article
Copyright
Copyright © International Actuarial Association 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Arrow, K. (1963) Uncertainty and the Welfare Economics of Medical Care. The American Economic Review 53, 941–73.Google Scholar
Arrow, K. (1974) Optimal Insurance and Generalized Deductibles. Scandinavian Actuarial Journal, 142.Google Scholar
Bernard, C. and Tian, W. (2009) Optimal reinsurance arrangements under tail risk measures. Journal of Risk and Insurance 76(3), 709725.Google Scholar
Borch, K.H. (1960) An attempt to determine the optimum amount of stop-loss reinsurance. Transactions of the 16th International Congress of Actuaries, 2, 579610.Google Scholar
Borch, K.H. (1969) The optimal reinsurance treaty. ASTIN Bulletin 5(2), 293297.Google Scholar
Borch, K.H. (1990) Economics of Insurance. Advanced Textbooks in Economics, 29. North-Holland.Google Scholar
Bowers, N.L. (1969) An upper bound for the net stop-loss premium. Transactions of the Society of Actuaries XIX, 211216.Google Scholar
Cai, J. and Tan, K.S. (2007) Optimal retention for a stop-loss reinsurance under the VaR and CTE risk measures. ASTIN Bulletin 37(1), 93112.Google Scholar
Cai, J., Tan, K.S., Weng, C. and Zhang, Y. (2008) Optimal reinsurance under VaR and CTE risk measures. Insurance: Mathematics and Economics 43, 185196.Google Scholar
Chi, Y. and Tan, K.S. (2010) Optimal reinsurance under VaR and CVaR risk measures: a simplified approach. Working paper SSRN id=1578622.Google Scholar
Cheung, K.C. (2010) Optimal reinsurance revisited – a geometric approach. ASTIN Bulletin 40(1), 221239.Google Scholar
Cummins, J.D. and Mahul, O. (2004) The demand for insurance with an upper limit on coverage. The Journal of Risk and Insurance 71(2), 253264.Google Scholar
Dimitrova, D.S. and Kaishev, V.K. (2010) Optimal joint survival reinsurance: an efficient frontier approach. Insurance: Mathematics and Economics 47(1), 2735.Google Scholar
Gajek, L. and Zagrodny, D. (2004a) Optimal reinsurance under general risk measures. Insurance: Mathematics and Economics 34(2), 227240.Google Scholar
Gajek, L. and Zagrodny, D. (2004b) Reinsurance arrangements maximizing insurer's survival probability. The Journal of Risk and Insurance 71(3), 421435.Google Scholar
Hürlimann, W. (1994a) Splitting risk and premium calculation. Bulletin of the Swiss Association of Actuaries, 167–97.Google Scholar
Hürlimann, W. (1994b) From the inequalities of Bowers, Kremer and Schmitter to the total stop-loss risk. Proceedings 25th International ASTIN Colloquium, Cannes.Google Scholar
Hürlimann, W. (1996) Mean-variance portfolio theory under portfolio insurance. In: Albrecht, P. (Ed.). Aktuarielle Ansätze für Finanz-Risiken. Proceedings 6th International AFIR Colloquium, Nürnberg, vol. 1, 347374. Verlag Versicherungswirtschaft, Karlsruhe.Google Scholar
Hürlimann, W. (1997a) An elementary unified approach to loss variance bounds. Bulletin of the Swiss Association of Actuaries, 7388.Google Scholar
Hürlimann, W. (1997b). Fonctions extrémales et gain financier. Elemente der Math. 52, 152168.Google Scholar
Hürlimann, W. (1998) Inequalities for lookback option strategies and exchange risk modelling. Proc. 1st Euro-Japanese Workshop on Stochastic Risk Modelling for Insurance, Finance, Production and Reliability. Available at http://sites.google.com/site/whurlimann/ Google Scholar
Hürlimann, W. (1999) Non-optimality of a linear combination of proportional and non-proportional reinsurance. Insurance: Mathematics and Economics 24, 219227.Google Scholar
Hürlimann, W. (2000) Higher-degree stop-loss transforms and stochastic orders (I) theory. Blätter der Deutschen Gesellschaft für Versicherungsmathematik XXIV(3), 449463.Google Scholar
Hürlimann, W. (2002) Economic risk capital allocation from top down. Blätter der Deutschen Gesellschaft für Versicherungsmathematik 25(4), 885891.Google Scholar
Hürlimann, W. (2003) An economic risk capital allocation for lookback financial losses. Available at http://sites.google.com/site/whurlimann/ Google Scholar
Hürlimann, W. (2004) Distortion risk measures and economic capital. North American Actuarial Journal 8(1), 8695.Google Scholar
Hürlimann, W. (2010) Case study on the optimality of some reinsurance contracts. Bulletin of the Swiss Association of Actuaries, 2, 7191.Google Scholar
Ignatov, Z.G., Kaishev, V.K. and Krachunov, R.S. (2004) Optimal retention levels, given the joint survival of cedent and reinsurer. Scandinavian Acturarial Journal 6, 401430.Google Scholar
Kahn, P.M. (1961) Some remarks on a recent paper by Borch. ASTIN Bulletin 1(5), 265–72.Google Scholar
Kaishev, V.K. and Dimitrova, D.S. (2006). Excess of loss reinsurance under joint survival optimality. Insurance: Mathematics and Economics 39(3), 376389.Google Scholar
Kaluszka, M. (2005) Truncated stop-loss as optimal reinsurance agreement in one-period models. ASTIN Bulletin 35(2), 337349.Google Scholar
Kaluszka, M. and Okolewski, A. (2008) An extension of Arrow's result on optimal reinsurance contract. Journal of Risk and Insurance 75(2), 275288.Google Scholar
Kremer, E. (1990) An elementary upper bound for the loading of a stop-loss cover. Scandinavian Actuarial Journal, 105108.Google Scholar
Meng, H. and Zhang, X. (2010) Optimal risk control for the excess of loss reinsurance policies. ASTIN Bulletin 40(1), 179197.Google Scholar
Ohlin, J. (1969) On a class of measures of dispersion with application to optimal reinsurance. ASTIN Bulletin 5, 249–66.Google Scholar
Vajda, S. (1962) Minimum variance reinsurance. ASTIN Bulletin 2(2), 257260.Google Scholar
Venter, C.G. (2001) Measuring value in reinsurance. Seminar on Reinsurance, Handouts, Casualty Actuarial Society, http://www.casact.net/pubs/forum/01sforum/01sf179.pdf Google Scholar
Wang, S. (1998) An actuarial index of the right-tail risk. North American Actuarial Journal 2(2), 88101.Google Scholar