MAP20078038947 Eichner, Thomas Variance vulnerability, background risks, and mean-variance preferences / by Thomas Eichner and Andreas Wagener En: The Geneva Risk and Insurance Review. - The Netherlands : The Geneva Association, 1991-2010 = ISSN 0926-4957. - 01/12/2003 Número 2 28 2003 , p. 173-184 I. Wagener, Andreas . II. Title.