大白菜2012 发表于 2012-10-14 12:53 
我和sungmoo想的一样,你应该先了解what is fixed effect,然后再回过头来看stata 里相关命令的运用。否则 ...
我查了stata help和wikipedia
with the fe option, it fits
fixed-effects models (by using the within regression estimator)
The fixed effect assumption is that the individual specific effect is correlated with the independent variables
还是不太清楚这意味着什么。。能给我个具体点的例子吗?