在网上查到两者的区别,说:
Pooled cross section: one way fixed effects or random effects (only time) or just pooled OLS.
Panel data: two (or one) way fixed effects/random effects (either time or individual or both) or pooled OLS.
那为什么这里作者明明可以用panel,却用了pooled cross section呢?
感激不尽。


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