MAP20080052720 Gong, Guang Mortality heterogeneity and the distributional consequences of mandatory annuitization / Guang Gong, Anthony Webb En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 01/12/2008 Tomo 75 Número 4 - 2008 I. Webb, Anthony . II. Título.