Evaluating the Efficiency of Mutual Funds Based on DEA Models

Mutual funds are used in stock exchanges in the world with the goal of increasing efficiency and boosting investment in capital markets and have an important role in financing resources and leading it to the production capacity. The philosophy of establishing these mutual funds is to gather funds and invest them in a collection of diverse securities (stocks, bonds and other kinds of securities). The efficiency of mutual funds with regard to the high volume of their buying and selling in the capital market is the main discussions about them. In this research, based on Data Envelopment Analysis that is a nonparametric method, the mutual funds existing until May 2011 are ranked based on BCC and CCR models, then return on scale of them is examined and finally, mutual funds are ranked by A&P model. The results show that 16 and 18 mutual funds are on the efficiency boundary based on CCR and BCC models, respectively. Return on scale for mutual funds is not constant.