Technical efficiency in the rural financial sector: evidence from Mexico

The void in the rural financial market in Mexico is more pronounced than ever given the retreat of many state programs. In response, small, heterogeneous semi-formal institutions have begun to fill the gap with financial services to rural Mexicans. This study sheds light on this largely undocumented sector by examining the technical efficiency of various institutional types. Data Envelopment Analysis is used to create a nonparametric frontier of technically efficient firms based on a sample of 350 semi-formal financial institutions. Using this framework, the heterogeneity of the sector is highlighted and most institutions are found to be highly inefficient. In a second stage of analysis, the primary determinants of efficiency are found to be institutional factors rather than client profiles.