Have they controlled for age? Or is that included in their claim of having controlled for experience? Older men are more likely to be married (since finding a

Have they controlled for age? Or is that included in their claim of having controlled for experience? Older men are more likely to be married (since finding a partner takes a variable amount of time, and the marriage rate is higher than the divorce rate). And salaries also tend to go up over time as employees build their careers. This would of course be part of the author's "Explanation #1: Ability bias.". I'm just surprised that this sub-explanation isn't explicitly called out.