黃河泉 发表于 2017-11-18 16:32 
我的猜测是因为, for balanced panel data, programming 较简单!
在 CMPR 论文的 P143,写的是 “Overall, we ended up with an
unbalanced panel covering 1965 to 2010, with T_min = 30, and N_min = 10 across all countries and time periods.” 那么作者提供的 Matlab 代码,应该是 "适用于 unbalanced data",黄老师您觉得呢?