Ial:
your post is actually too long to follow in detail.
That said, if you're using an -fe- specification, what's the gain in investigating -industry- as usually firms are assumed to remain in the same industry all their life long?
your post is actually too long to follow in detail.
That said, if you're using an -fe- specification, what's the gain in investigating -industry- as usually firms are assumed to remain in the same industry all their life long?
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