This question asks what empirical research exists on the subject of increasing salary by changing jobs versus seeking promotions in the same company. That sounds on-topic to me, but it's been closed by the community. One comment said it was asking for links to other resources. I commented:
I think a good answer to this question would describe this empirical research, not just point to it. That seems like an on-topic question to me.
I would agree if someone asked a question that said I have this reseach can someone explain what it means in this context. Asking for the research is not though.
Actually, I would think that "explain these research results to me" would be off-topic for us, unlike "what is the research". But I digress.
This isn't the first question asking about evidence/research on a workplace topic we've gotten. That one was pretty well-received by the community and got a good answer (not just a link).
I still don't see the problem with the present question, but obviously at least five community members do (and there are no reopen votes). One of our persistent problems is questions that seek and/or attract opinion-based, unsourced answers -- here we have a question that's explicitly asking for sources, but it's closed. The topic about which it seeks research is solidly in our scope: it's a question about wages and raises.
Why is this question closed?