Description: In this paper the author shows that the aggregate claims distribution of a portfolio modeled by a mix of the individual and collective models can be obtained with a single recursion under some conditions. He discusses why the collective model is not necessarily an approximation of the individual model in the context of pension funds, for example. An application to a Swiss pension fund is presented. From Actuarial Research Clearing House 2003, Vol. 1.

Description: The purpose of the present paper is to discuss some of the methods by which fertility variations can be incorporated into population forecasts. From ARCH 1984, Vol. 1.

Description: Provides an in-depth review of Canadian occupational mortality and morbidity - disability - experience. This includes population and insured data up to 1981.

Description: This paper addresses the autoregressive model and shows that the boundedness restriction can be removed from the basic result on the probability of ruin. From Actuarial Research Clearing House 1991, VOL. 1.

Description: This paper considers the development of the insurance and investment markets in the EC from an historical and legal point of view. The likely changes as a result of the Single European Act are also considered along with possible ways of ensuring the act is met and the role of the actuary in that process. From Actuarial Research Clearing House 1991, Vol. 1.

Description: In writing this note on the relationship between total return, duration and convexity, it was author's intent to produce a better understanding of Redington's theory of immunization. From Actuarial Research Clearing House 1991, VOL. 2.

Description: This model arose from a project to evaluate the cost of a health care access' program to provide comprehensive medical care to uninsureds in Minnesota, for the Minnesota Health Care Access Commission. The project was to provide estimates of the impact on per-person and aggregate costs for various participation percentages in the access program. In order to evaluate those costs, the antiselection model described in this was developed. Of note, this was the ACTUARIAL EDUCATION AND RESEARCH FUND 1991 PRACTITIONERS AWARD WINNER. From Actuarial Research Clearing House 1991, VOL. 2.

Description: This paper introduces the alternative notion of 'corresponding conditional single-decrement models.' These models: 1. do have both an intuitive and a precise probabilistic meaning, 2. do behave as do standard single-decrement models, 3. can easily be used to construct the full multiple-decrement model without any special assumption. From Actuarial Research Clearing House 1993 VOL. 1.

Description: Pension funds are usually either defined benefit or defined contribution funds. In Australia in recent years, for a number of reasons, some pension funds have offered the 'greater of,' these two benefits. Such a benefit design can be valued using contingent claims valuation techniques since it is equivalent to an option on the maximum of two random benefit amounts - one equal to a multiple of salary and the other the accumulation of a percentage of salary at an earnings rate. This paper overviews some of the issues in applying contingent claims valuation techniques to the valuation of this style of benefit. From Actuarial Research Clearing House 1993, Vol. 1.

Description: The problem of estimation of a tabular survival model from complete samples is considered from a Bayesian approach. If a life test involves a large cohort group, then data is typically given as a grouped data set. The survival function St is usually estimated by the moment estimator. We approximate the joint prior distribution of the unknown unconditional failure probabilities by a Dirichlet distribution, and then use a linear relationship between St and the conditional survival probabilities to obtain a Bayes estimator of St.