RT Generic T1 Maxmin portfolios in financial immunization A1 Balbás, Alejandro A1 Ibáñez, Alfredo A2 Universidad Carlos III de Madrid. Departamento de Economía de la Empresa, AB The existence of maxmim bond portfolios is proved in very general contexts, and so for instance, this existence holds if an immunized portfolio does not exist but atl the considered portfolios have duration equal to the investor planning periodo To characterize the maxmin portfolio, saddle point conditions are found, and from them, an algorithm is given. This algorithm permits to find the maxmin portfolio in practical situations. Relations between maxmin portfolios and the ones minimizing the dispersion measures (for instance, the M-squared or the Ñ measure) are also studied. In particular, it will be proved that minimizing the dispersion measure and looking for maxmin portfolio are equivalent strategies only when we are working with pure discount bonds. Finally, as a consecuence of the obtained results, two new strategies to invest are proposed. YR 1995 FD 1995-07 LK http://hdl.handle.net/10016/7081 UL http://hdl.handle.net/10016/7081 LA eng DS e-Archivo RD 27 abr. 2024