> Why do you think those that still show a gap are undercorrecting rather than those that are not showing a gap are overcorrecting?I didn't say that. I explicitly pointed out that e.g. bias in promotions would result in overcorrecting if one controls for leveling.
> I am not sure what corrections should be made to data comparing people with the same job at the same company.
There are things like tenure, experience level, work hours, etc. that aren't captured by just job/company (e.g. "software engineer at x" can capture a wide range of employees that shouldn't be and aren't compensated the same). However, most of these studies don't even look at the same company, and usually only control for things like industry, experience, and degree. The Carta study doesn't even control for anything.
> If your job has nothing to do with negotiating then your ability and/or willingness to negotiate shouldn't be the deciding factor in what compensation you receive.
I agree in principle, but have come to realize that in practice it doesn't work out that way. The problem is that negotiation-willingness tends to be a proxy for how much an employee cares about compensation. Thus, employers have reason to provide higher comp to the employees who negotiate for it (since they will value the higher comp), but not to provide higher comp to employees who don't negotiate (since they are much less likely to value the extra compensation spent on them).
In practice, you end up with two sorts of companies. One kind refuses to negotiate or match counter-offers, and tends to have relatively low compensation across the board; these companies typically have mission-driven employees who don't prioritize compensation. You have the other kind that does negotiate, and often offers relatively high compensation to everyone, but particularly those who negotiate for it; this kind of company typically has a mix of mission-driven and compensation-driven employees.
In my experience, the distribution of mission-driven vs. compensation-driven people is not equal across the genders. This may very well be due to socialization.