Logistic regression analysis was used to test the hypothesis that mark
et forces have led to recent hospital closures. Specifically, ineffici
ent and underutilized hospitals in competitive markets were hypothesiz
ed to be at greater risk for closure. While past studies used crude me
asures of hospital efficiency to predict closure, this study used data
envelopment analysis to construct an efficiency index. Mixed support
was found for the market forces hypothesis; however, contrary to expec
tations, inefficient hospitals were not shown to be at increased risk
for closure. In fact, efficiency proved to be a weak, but positive, pr
edictor of closure.