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On a Short Method of Constructing Select Mortality Tables

Published online by Cambridge University Press:  18 August 2016

Extract

An apology is scarcely required for explaining an easy method of constructing select mortality tables; and it is hoped that the method now described and illustrated will prove useful to others, and that they also will find that it gives results sufficiently accurate for all ordinary purposes.

Hitherto, select mortality tables have been constructed only by very elaborate processes; and the amount of labour involved is practically prohibitive in such cases as occur now and then in actuarial practice. Possibly many actuaries do not often require special tables of the kind, but occasions do arise where it is of real importance to construct them. This happened to me in respect of the experience of the female annuitants of the Royal National Pension Fund for Nurses, and hence the method which I now suggest was devised.

Type
Research Article
Copyright
Copyright © Institute and Faculty of Actuaries 1921

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References

page 334 note * The detailed results of the graduation have been left with the Assistant-Secretary of the Institute, in order that they may be inspected by anyone interested.—Eds.

page 335 note * Since βcx = cx-t (when t is a constant =log β/log c), a curve of cx drawn on a transparent scale (say on tracing-paper) can easily be shifted over the diagram of rx, and it can be seen by inspection whether any part of the curve raised by a constant above our base-line will sufficiently represent and graduate the values of rx — Cf. Calderon, , J.I A., vol. xxxv, pp. 173–5.Google Scholar