我用的是stata17 MP版本,做did安慰剂检验,使用permute命令,报错提示program did not found,问下怎么解决呢,寻找能帮忙操作解决的大神,有偿<br>
在执行permute did beta = _b[did] se= _se[did] df = e(df_r), reps(500) rseed(123) saving("simulations.dta"): reghdfe y did, absorb(country year) vce(robust)命令,报错program did not found<br>


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