ÇóÖú´óÉñ£¡Ãæ°åÊý¾ÝÐèÒª×öÒ»¸ö¹¤¾ß±äÁ¿´¦Àí£¬xtivregºÍivreghdfe»Ø¹é³öÀ´µÄÒ»¸ö¿ØÖƱäÁ¿·ûºÅ²»Ò»Ñù£¬ÏëÎÊÒ»ÏÂÕâÊÇʲôÔÒòÄØ£¿Ó¦¸ÃÑ¡ÓÃÄÄÒ»¸öQAQ
xtivreg y x2 x3 x4 i.industry i.year (x1 =IV), fe vce(cluster code) first
»¹ÊÇ
ivreghdfe y x2 x3 x4 (x1 = IV), absorb(i.industryi.year) cluster(code) first endog(x1)


À״│



¾©¹«Íø°²±¸ 11010802022788ºÅ







