Physician agency and patient survival

摘要: We investigate the role of physician agency in determining health care supply and patient outcomes. show that an increase due to a change private incentives has theoretically ambiguous impact on welfare. The can reflect either induced demand for ineffective or reduction prior rationing effective care. Furthermore, market structure matters welfare effects changes incentives. then analyze Medicare fees caused physicians their provision chemotherapy. find this treatment improved survival, extending median life expectancy lung cancer patients by about 18%. Consistent with model, we while response was larger less concentrated markets, survival improvements were more markets.