Infertility as an instrumental variable= Brilliant
We find that the presence of children affects neither the likelihood of work nor its intensity, but impacts the type of work a woman pursues.
Wage penalties for high ethical standards
Of the explained gap [between men and women in wages], about a quarter is accounted for by gender heterogeneity in labor market tastes and noncognitive skills—remarkably, about the same proportion explained by both hours worked and current job characteristics; human capital variables explain the remaining half. “Good citizen” characteristics and behaviors of female MBAs, namely their high ethical standards and choice of jobs that contribute to society, account for some of the earnings gap. Thus, the MBA women in our sample apparently desire to work differently than do male MBAs, and consequently earn less.
Note, Nerdfriends, they use the Blinder-Oaxaca decomposition to explain wage gaps. Thank you, PA8312.