volume 4, issue 4, P689-706 1998
DOI: 10.1017/s1357321700000180
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A.S. Fishman, J.J. Daldorph, A.K. Gupta, T.W. Hewitson, M.R. Kipling, D.R. Linnell, S.R. Nuttall

Abstract: The text of this paper, together with the abstract of the discussion held by the Institute of Actuaries on 22 September 1997, are printed in British Actuarial Journal, 4, II, 145-191.