MAP20100100622 Halek, Martin Effects of analysts' ratings on insurer stock returns : evidence of asymmetric responses / Martin Halek and David L. Eckles En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 10/12/2010 Tomo 77 Número 4 - 2010 I. Eckles, David L. .
