MAP20100052570 An Optimal product mix for hedging longevity risk in life insurance companies : the immunization theory approach / Jennnifer L. Wang... [et al.] En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 01/06/2010 Tomo 77 Número 2 - 2010 I. Título.