In recent years we have witnessed an expanding array of organizational arra
ngements for providing health care services in the U.S, These arrangements
integrate previously independent providers at one or more points on the con
tinuum of care. The presence of so many of these arrangements raises the qu
estion of whether certain types are move effective than ave others to help
providers adapt to their environment. This article discusses contingency th
eory as a conceptual lens for guiding empirical studies of the effectivenes
s of different types of arrangements.