Medicaid Policy, Physician Behavior, and Health Care for the Low-Income Population
研究1980-1990年代美国扩大医疗补助资格和提高医生费用对低收入孕妇产前护理的影响，发现只有公立和医院诊所的医生增加了服务，私人诊所医生没有变化。
Responding to concerns about the health of poor children and mothers, Medicaid eligibility for pregnant women was expanded during the 1980s and 1990s and Medicaid fees paid to physicians for prenatal care and delivery were increased. We examine physician responses to these policy changes using data on physician practices. We find that expanded eligibility for Medicaid did increase access to physician services. Contrary to some earlier findings, however, increases in access are only apparent for the physicians in institutions such as public clinics and hospital clinics; we find no evidence that increases in eligibility increase access to private, office-based physicians.