
by Carroll Seron, Susan Silbey, Erin Cech and Brian Rubineau
Men and women tend to work in different jobs. This tendency, called occupational sex segregation, is a primary cause of the gender pay gap. A recent McKinsey study finds that reducing occupational sex segregation could contribute $2 Trillion to the U.S. economy.
Despite advances toward equality in other areas, occupational sex segregation has remained essentially unchanged over the last quarter century. What keeps some jobs dominated by men and others by women?
Looking at engineering, perhaps the most male-dominated profession, helps understand some of the drivers of occupational sex segregation. In the U.S., less than 20% of undergraduate engineering degrees go to women, and less than 13% of the current engineering workforce is female.
Much ink has been spilled describing factors that lead men to persist or women to leave engineering. Confidence, family plans, a sense of fit, and external encouragement are some such factors.
But how do these gender differences emerge? How are they experienced by students? What happens and when?
To answer these questions, we collected and analyzed twice-monthly diary entries from more than 40 engineering students across four universities during their four years of college: over 3,000 diary entries in all.







