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In order to investigate the policy effect of China's long-term care insurance pilot policy and enrich the relevant research results of long-term care insurance evaluation. In this paper, DID model and PSM-DID model are used for empirical analysis, and CHARLS mixed panel data is used. Baseline regression shows that the implementation of long-term care insurance significantly reduces the out-of-pocket medical expenses and the number of inpatient visits of the middle-aged and elderly insured group, while has no significant impact on the number of outpatient visits. The PSM-DID model and counterfactual estimation are used to enhance the reliability of the results. In addition, the heterogeneity test is conducted by household registration and gender group, and the results show that long-term care insurance only has a significant positive effect on the number of inpatient visits in rural population, but not in urban population. The implementation of the policy has a significant effect on the utilization of medical services for men, but not for women.
Luo et al. (Sun,) studied this question.