Income Disparity,Private Health Insurance and Medical Innovation——Based on the Empirical Evidence Analysis of the United States
This article explores the impact of income disparity on the development of medical innovation and proves the mechanism effect of private health insurance.Based on the panel data of 51 provinces in the United States from 2013 to 2020,the study finds several conclusions through threshold effect model mechanism testing procedures and for empirical testing.(1)There is an inverted'N'type nonlinear impact relationship between income disparity and medical innovation;(2)In the path of income distribution affecting medical innovation,the development of private health insurance is one of the influencing mechanisms;(3)Under different income disparity levels,income disparity has different effects on medical innovation,which is manifested as a threshold effect.After the first threshold,the effect turns from negative to positive,and after the second threshold,the effect turns to negative again.It is due to that there is also a threshold effect between income disparity and private health insurance.The research conclusion is still valid after endogenous analysis and robustness test.The research conclusions can provide evidence support for policy recommendations such as facing the positive social significance of income disparity,driving middle income groups to purchase private health insurance,and forming effective demand for innovative drugs.It has important reference value for enlarging the middle-income class group to promote the development of medical innovation in China.
income disparityprivate health insurancemedical innovationthreshold effect
NETL
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万方数据
