Publisher:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft, Kiel und Hamburg
Abstract:
We use data from a German health insurer to study how the impact of switching from a fee for service system (FFS) to a high powered incentive scheme (prospective payment system; PPS) depends on the characteristics of patients and hospitals. As hospitals had a transition period of several years to complete the switch, we can adopt a difference-in-differences approach by adding hospital fixed effects and a time trend. Our results support hypotheses drawn from an incentive and selection perspective: PPS reduces the length of stay of older relative to younger patients, of more severe relative to less severe cases, and in smaller relative to larger hospitals. Hospitals which adopted PPS earlier provide higher quality under PPS as proxied by the case-specific readmission rate.
