Abstract:
We estimate inefficiency for the Chilean banking system in the period 1990-1999 through a sample of 24 national and foreign banks. Estimations indicate that the large banks are closer to their efficient frontiers (or display less x-inefficiency) as compared to the group of very small, small and medium-sized banks, which is consistent with international studies. National and large banks appear to be more efficient. It is exactly the latter group which has reported greater levels of risk and book returns. Also, the group of foreign bank branches displays the greatest levels of inefficiency, practically six times the level detected for national banks. Finally, inefficiency in the national banking system appears more clearly related to book returns that to risk.