Managed care and technical efficiency
研究了1992-1996年美国医院数据，发现管理式医疗市场份额增加能提升医院技术效率，尤其对复杂病例效果更明显。
By focusing exclusively on consumer benefit, previous studies of the effects of managed care have ignored important hospital efficiency gains. This study uses the HCUP sample of hospitals for 1992-1996 to estimate a stochastic frontier model of hospital technical efficiency. After controlling for hospital and market area variables, the study finds strong evidence that increased managed care insurance in a given market is associated with improved technical efficiency in the area's hospitals, especially in tertiary cases. Using Battese and Coelli's one-stage method (1995), the coefficients estimates are more efficient than for two-stage methods found in the literature.