> The point of linking these studies was that economists study these issues

The sentence I said that triggered you was "0 economists are working on this problem", referring obviously to the pay gap caused by discrimination.

You have linked to inaccurate (as per comment above) studies that study whether there is a pay gap or not, and are inconclusive.

Since the pay gap as a problem--therefore not as a hard-to-measure occurrence but as a problem caused by discrimination--has not been proven, there are 0 economist working on this problem.

It's not been proven to be an actual problem that exists, and that's why no economist is working on fixing it.