This paper compares the immunization performance of alternative single and multiple factor duration models, using Spanish government bond data, over 1, 2 and 3-year horizons. The aim is to assess whether the success of duration-matching strategies is primarily attributable to the particular...

Sector investment has grown significantly in international stock markets an also in the Spanish one, during the last few years. Among other issues, sector portfolio managers need to estimate accurately the beta of their portfolios in order to carry out more efficient investment strategies....