%0 Journal Article %T O desempenho de fundos de renda fixa e o ¨ªndice de renda de mercado (IRF-M) %A Vilella %A Paulo Alvarez %A Leal %A Ricardo Pereira Camara %J RAE eletr£¿nica %D 2008 %I Scientific Electronic Library Online %R 10.1590/S1676-56482008000100003 %X this article analyses the employment of the fixed income index (irf-m), based on the yields of brazilian treasury bills, to measure the performance of fixed income mutual funds. the irf-m is tested as an alternative benchmark to the one-day inter-bank offering rate (cdi), which represents floating rate securities. 212 funds in the non-leveraged and multi-index (asset) categories are analyzed. the results indicate that the irf-m marginally improves the models' explanatory power, but its economic impact is still relatively low when compared to the cdi rate. %K mutual funds %K investments %K financial benchmark %K fixed income %K indexation. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1676-56482008000100003&lng=en&nrm=iso&tlng=en