广义DID方法运用得非常经典的JHE文献

广义DID方法运用得非常经典的一篇文献，下面只是保留了conceptual framework和Quasi-experiment design两部分。想要阅读全文可以自行下载这篇文章阅读使用，里面有三重差分，还有置换检验permutation test等等非常详细的讨论。

Medicaid reimbursement policies, presented in the third panel,tell a similar story. Allowing Medicaid to reimburse hygienistsdirectly increases one year utilization rates by about 2.5 percent-age points (p = 0.007). There is no effect on two year utilizationrates. One year teeth cleaning rates increase by 3.7 percentagepoints (p = 0.001) and there is no effect on two year teeth cleaningrates.

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https://pan.baidu.com/s/1ghsP9fK3ckAsGxMuJHgfng

可以到因果推断研究小组探讨广义DID相关问题。