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An Extension of Lidstone's Z Method

Published online by Cambridge University Press:  07 November 2014

S. R. Hellig  and
T. G. Stobie
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Transactions of the Faculty of Actuaries , Volume 16 , Issue 1 , 1938 , pp. 341 - 348
Copyright
Copyright © Institute and Faculty of Actuaries 1938

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References

page 342 note * An alternative approach to the problem of finding the single mean maturity age applicable to the special case of a table following Makeham's Law (over the main part of the table) is given in the Appendix.

page 348 note * In an addendum by Mr. W. C. Reid to Mr. Lidstone's latest paper on the Z method (J.I.A., lxiv. p. 493) it is shown that the standard Z method overstated the true value of premiums by ·03% on a valuation by the A1924–29 3% ultimate table.