Credit unions are small, cooperative, not-for-profit institutions, whi
ch distinguishes them from other financial intermediaries. In this stu
dy we conduct a performance evaluation of credit unions. The criteria
respect the unique organizational and institutional features of credit
unions, without losing sight of the fact that they must compete with
other financial intermediaries. We use nonparametric, nonstochastic te
chniques to measure performance, and we use parametric, stochastic tec
hniques to attribute performance variation to features of credit union
s and their operating environment. Our sample consists of two-thirds o
f all active credit unions in 1990.