This paper explores empirical linkages between credit unions' (CUs') polici
es and their financial performance, as measured by loan delinquency and pro
fitability, using a unique micro dataset of credit unions in three Latin Am
erican countries. The estimated translog profit function is generalized usi
ng a slack variable concept that parameterizes any systematic deviation fro
m profit-maximizing behavior exhibited within the sample. In general, we fi
nd that performance depends in important ways on two types of CU policy var
iables, some associated with the incentives of borrowers to repay and other
s that affect the CU's ability to screen loans, (C) 1999 Elsevier Science B
.V. All rights reserved. JEL classification: O54; G21.