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大佬们,Principles of Econometrics.4th有一道课后题求解!!!
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题目是这样的。4.15 Does the return to education differ by race and gender? For this exercise, use the filecps4.dat. In this exercise you will extractsubsamples
of observations consisting
of (i) all ma ...
2020-9-18 10:42 - 笑笑哭 - Stata专版