武汉大学社会保障研究中心研究员孟颖颖副教授以第一作者身份在INTERNATIONAL JOURNALOF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH（SSCI二区，IF=2.608）2018年第10期上发表了题为“TheImpact of Health Insurance Policy on the Health of the Senior FloatingPopulation-Evidence from China”的论文。

【作者】Meng,Yingying, etc.

【发表期刊】INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH ANDPUBLIC HEALTH

【发表时间】2018,15(10)

【摘要】Theimpact of health insurance on residents' health is one of the focal points ofacademic research. Due to the fact that China's medical insurance system iscomposed of a variety of programs and that the pooling districts are at thelower administrative level, enrollment in different medical insurance programsor at different places may have certain influences on the health of residents.This has mostly been neglected by previous studies. This paper uses data fromthe 2015 China Migrants Dynamic Survey (CMDS), focusing on the senior floatingpopulation and taking the difference in government subsidy proportions as aninstrumental variable in order to identify the effects of health insuranceprograms and regional differences on the health of the senior floatingpopulation. Three effects were observed: First, participation in the healthinsurance system significantly improves floating seniors' self-rated health.Second, the health status of floating seniors affects their choice of healthinsurance program: Less healthy persons tend to choose high-paying,wide-coverage basic medical insurance available for urban employees. Using aninstrumental variable to control for the problem of endogeneity, it isdiscovered that compared with the basic medical insurance system for urbanresidents, the system for urban employees significantly enhances the health ofthe senior floating population. Third, adverse selection could be observed inthe choice between enrolling in health insurance at the place of settlement oranother place. Senior migrants with worse self-rated health tend to chooseplace of settlement in order to enjoy higher compensation and less complexreimbursement procedures. With an instrumental variable to control for theproblem of endogeneity, it was found that compared with joining the medicalinsurance system at other places, joining at a place of settlement couldimprove the health of the floating senior population.

【关键词】medicalinsurance system; health; adverse selection; floating population; China