Donna K. Ginther and Shulamit Kahn write,

Children create a marked divergence between men and women. For science as a whole, the presence of a pre-kindergarten aged child lowers women’s likelihood of having a tenure track job by 8.1 percent. The presence of a grade school child has no effect. In contrast, for men, pre-kindergarten children have no effect on their likelihood of having a tenure track job while each child above six years old increases a man’s probability of getting a tenure track job by 2.9 percent.

Thanks to Tyler Cowen for the pointer. He mentions his respect for Kahn, who I have not seen in over 25 years–she and I entered MIT graduate school the same year. I remember after several us got together at the apartment that Bob McDonald and I shared, Shu and I had a long talk about how depressed we were.

This reminds me of a couple of things. One is that first-year students had to work together–the problem sets were too hard to tackle for an individual. Also, at one point or another, everyone got depressed and felt like quitting. Over the years, I don’t think that the mathematical hazing ritual known as economics grad school has changed all that much.