RICHARD EPSTEIN: Gender@Google. “Indeed, recent data show that in all graduate programs women outnumber men by more than a 4-3 ratio, but that field differences matter. Thus men get about 75 percent of the advanced degrees in Engineering, Mathematics and Computer Sciences, while women get slightly more than half the degrees in biological and agricultural sciences. No simple theory of discrimination can begin to account for this data. It is largely student selection that tends to drive the outcomes. But these raw numbers in quantitative areas matter far more for the tech jobs in Google than for work in management and sales. The observed distributions thus help explain the gender imbalance in tech jobs.”