MAP20100040294 An Optimal product mix for hedging longevity risk in life insurance companies : the immunization theory approach / Jennifer L. Wang... [et al.] En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 01/03/2010 Tomo 77 Número 1 - 2010 I. Wang, Jennifer L. . II. Title.