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On modelling select mortality

In this paper we present an approach to the graduation of select mortality data and we illustrate this approach by graduating the CMIB’s data for Female Permanent Assurances 1979-1982. The difference between our approach and that of the CMIB is that we graduate simultaneously by attained age and duration since selection

Notes on the Financial Times-Actuaries Equity Share Indices in 1990

Continuing process of updating company classifications. Ninety-six constituents deleted during 1990 - many as a result of strengthened casualty rule. Only 74 replaced - reflecting difficulty in finding suitable new non-industrial constituents. Agencies, Overseas Traders and Publishing & Printing groups discontinued at the end of the year, but Business Services, Electricity and Media introduced. Leisure renamed Hotels & Leisure.

Some statistical aspects of the Continuous Mortality Investigation Bureau"s mortality investigations

This article discusses the formulae for the select and ultimate exposed-to-risk in the CMIB’s mortality studies, and certain statistical aspects of these investigations. It is shown that there are difficulties in the traditional binomial approaches to the distribution of deaths, particularly for select rates, and the use of the Poisson distribution, rather then the binomial, is advocated.

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