What the study findings say is that there are identified input/output and profile variables that are significantly different between the Morningstar 500's (1999) large-cap mutual funds that are DEA performance efficient and inefficient. The Sharpe Index represents the DEA output variable. That...

This study analyzed a 1988 matched sample data of 176 foreign and domestic-owned U.S. banks that have domestic only offices. This was done to test whether the balance sheet strategies of foreign-owned U.S. banks in domestic markets differ from those of domestic owned banks. The primary impetus...

The overall evidence indicates that small-cap mutual funds with largest total assets are the most managerially efficient, as defined by DEA. And, this efficiency comes with conservative portfolio investment style attributes consistent with a strong value style of investing