连享会主播：Stata 数据清洗实战第二季 （课程主页）
花一点时间学习一下 Markdown。 从此，你会爱上码字写文章，开启随心所欲的书写历程。
连享会安慰剂检验专题
Stata code comparing difference-in-differences estimation methods
Two-Stage Difference-in-Differences following Gardner (2021)
Contributions last year: 0
Max continuous contributions: 0
Recent contributions: 0
Commits, issues, and pull requests will appear on your contribution graph. Only when the email address used for the commits in local configuration is associated with your GitOSC account, the commits' contribution will be counted.