highest rate of use of these payments. With the support of parallel marketing research, carried out both among patients in …

through 2004, we find that patients with high-risk health conditions and specialized physicians match relatively frequently in … disincentives to refer between firms are greatest. We rely on the random assignment of weekend patients to physicians due to on … is large and is due primarily to matching patients without a particular health condition to physicians who tend to avoid …

neglect the competition between health care providers for patients which is crucial for medical quality. This third field of …