"Why aren't there more women math professors? Or engineering professors, or physics professors, or professors of computer science or economics?" Why aren't there more women tech entrepreneurs?" "Some people say it's discrimination, others say socialization and few, including a former Harvard university president, have said ability has something to do with it." "But there's another more sinister force at work. Motherhood. Many women do not choose to pursue a tenure-track position right after their PhDs because they are procreating." "Ceci and Williams believe that the solution lies in changing the way tenure is attained."