[求助]弱弱地问:怎么用stata作随机前沿分析

state做随机前沿，有一定局限性，最好用frontier

找到了呢,可是还是不会用呀
哎,有点笨呀
有没有什么可以参考的文章呀

另外,再想求三篇文章呀
Prediction of firm-level technical efficiencies with a generalized frontier production function and panel data.

A  model for technical inefficient effects in a stomastic frontier production function for panel data

why does liquidity matter in investment equations?