xtreg lnrgdp treat time Before5 Before4 Before3 Before2 Before1 Current After1 After2 After3 After4 After5 i.year,fe cluster(id)
的结果
加入控制变量后为什么after2345没了?没了怎么做平行趋势啊:xtreg lnrgdp treat time Before5 Before4 Before3 Before2 Before1 Current After1 After2 After3 After4 After5 hc inv exp fdi loans i.year,fe cluster(id)


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