Noah asked me to follow up on this hard-hitting Bloomberg View column with one of my own. Along with an anonymous female coauthor, I expect to have a new column on gender bias in economics out tomorrow morning (Tuesday). I will post a link as soon as I see it up.
This is an issue I feel strongly about, after having been on the losing side of many battles within my department in which I wanted to hire or promote a female economist. (To avoid giving the wrong idea, I should say that having been in on hiring decisions for over 27 years and in on tenure decisions for over 21 years, I have also opposed the hiring or promotion of more than one female economist. That side is easier sailing.)