. xthreg2 dcc size L.roa gdp, rx(lnin) qx(lnin) thnum(1) bs(300) trim(0.05) grid(100) r
There exist time-invariant individual(s) (maybe only one obs): dcc size L.roa gdp lnin
<istmt>: 3499 thestm2() not found
下载了xthreg2后运行一直出现这个问题,有没有大佬帮忙解答,万分感谢


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