The Doctor Might See You Now: The Supply Side Effects of Public Health Insurance Expansions
研究发现美国州儿童健康保险计划实施后，医生减少了与患者相处的时间但增加了项目参与，这源于就诊时间缩短，为公共保险挤出私人服务提供了证据。
In the United States, public health insurance programs cover over 90 million individuals. Expansions of these programs, such as the recently passed Patient Protection and Affordable Care Act (PPACA), may have large effects on physician behavior. This study finds that following the implementation of the State Children's Health Insurance Program (SCHIP), physicians decreased the number of hours spent with patients, but increased their program participation. Suggestive evidence shows that this decrease resulted from shorter office visits. These findings are consistent with the predictions from a mixed-economy model of physician behavior and provide evidence of crowd out resulting from the creation of SCHIP.