Description: Automobile insurers classify the risks that they underwrite in order to subdivide the portfolio into classes of risks with similar profiles. While some insurers may have sufficient historical data, several others may not have significant volume of experience data in order to produce reliable claims predictions to help enhance their risk classification systems. A database containing a pooled experience of several insurers thereby helps to produce a more fair, reliable, and equitable premium structure for all risks concerned. This paper uses multilevel models to analyze the data on claim counts provided by the General Insurance Association of Singapore, an organization consisting of most of the general insurers in Singapore. The multilevel nature of the data is due to the following: a certain vehicle is observed over a period of years and is insured by a particular insurance company under a certain 'fleet' policy. The authors show how intercompany data lead to a priori premiums and a posteriori corrections to these initial premiums. Specific focus is made in understanding the intercompany effects using various count distribution models [Poisson, negative binomial, zero–inflated and hurdle Poisson]. The performance of these various models is compared the authors also investigate how to use the historical claims of a company, fleet and/or vehicle in order to correct for the premium initially set.

Description: Recent articles addressed the subject of fuzzy regression [FR] and the term structure of interest rates [TSIR]. Their approach relied on possibilistic regression. Although possibilistic regression has been used in many applications, it has a number of limitations, not the least of which is its nebulous relation to the least-squares concept. As an alternative to possibilistic regression, this paper uses fuzzy least square regression to investigate the TSIR.

Description: This teaching session was presented as Session 6B at the 1987 Valuation Actuary Symposium. The subject was modeling techniques for use in testing the scenarios being developed by the Canadian Institute of Actuaries, ‘CIA,’ Solvency Standards Committee. The presenters, members of the Committee, have been working on developing a generic modeling approach. Their presentation is limited to the first of three phases of proposed CIA standards for solvency reporting dealing with scenario testing, namely the projection of surplus under various prescribed and selected scenarios.

Description: A presentation of a mathematics/statistics based approach for determining credibility factors for possible use in group health insurance premium rate setting and experience refund setting. Includes supporting mathematical proofs of approach. Followed by discussions submitted by several people

Description: This presentation, session number 83CS at the 1999 Spring Meeting of the Society of Actuaries, held June 16-18 in Seattle, is a preview of an actual Course 7. The presenters, two experienced researchers, lead the discussion and a demonstration of a case study from the modeling Course 7. Discussion from participants is included. From the Record of the Society of Actuaries, Vol. 25, No. 2.

Description: In this discussion, the panel recalls all of the considerations in the design of the SOFASIM Society OF Actuaries SIMulator. It was obvious from the first model of the life insurance company SOFASIM, as it was named must have an actuarial side as well as an investment side. GAAP and tax aspects of the model are also discussed.

Description: This presentation is a concurrent session from the 1980 Annual Meeting of the Society of Actuaries, held October 20-22 in Montreal. This session was arranged by the American Statistical Association, ‘ASA,’ and the five panelists are biostatisticians, the moderator being the sole actuary. It is the result of efforts by the ASA and SOA to work together and provide sessions at each other’s meetings. The panelists discuss specialized techniques developed for making greater use of noninsurance studies such as medical follow-ups and clinical trial analyses, which may, because of their nature, involve relatively small groups, and compare them with the more traditional actuarial methodology. Discussion from participants is included. From the Record of Society of Actuaries, Volume 6, No. 4.

Description: This session at the 1998 Valuation Actuary Symposium discusses the modeling of equity-indexed annuities including the assets and derivatives associated with the annuities.

Description: Discussion of methods to estimate unpaid claim liability UCL for health plans. Includes traditional IBNR lag method and a lag method based on claims reported but not paid RBNP. Issue No. 45

Description: 1997 Valuation Actuary Symposium, Session 21 looks at advanced topics in annuity modeling.