Does Contracting Out Increase the Efficiency of Government Programs? Evidence from Medicaid HMOs
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State governments contract with health maintenance organizations (HMOs) to coordinate medical care for nearly 20 million Medicaid recipients. Identifying the causal effect of HMO enrollment on government spending and health care quality is difficult if, as is often the case, recipients have the
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美国国家经济研究局创建时间：
2002-08-01
