各位大神,想问一个问题,我在检验内生性时
xtivreg lnexpy lnstock_gdp lnydyw lnpland lnfdi lnfai (ie=L1.ie L2.ie), fe
xtoverid
但结果总是显示的是
xtoverid
Error - must have ivreg2/ivreg29/ivreg28 version 2.1.15 or greater installed
我用的是升级后的stata12,现在是stata12.1, 请问有人知道怎么回事吗?我接下去又执行命令,findit xtivreg2,但是又出现
connection timed out -- see help r(2) for troubleshooting
could not load xtivreg2.pkg from http://fmwww.bc.edu/RePEc/bocode/x/
感激不尽!