How women enter higher education, attain degrees, and work in chemistry, mathematics, statistics, and computer science is essentially regulated by the different cultures within their national societies. These express social, economic, and political values about the role of women in society, and shape the values of academic institutions. The latter are sometimes contradictory and burdened with a historical legacy inimical to the full participation of women in science. At the same time, an increasing international consensus about the practice of science tends to be much more supportive of...