MAP20080023676 Estimating the cost of equity for property-liability insurance companies / Ming-Ming Wen... [et al.] En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 01/03/2008 Tomo 75 Número 1 - 2008 I. Wen, Ming-Ming .