Men, Women, and STEM: Why the Differences and What Should Be Done?

Abstract

It is a well-known and widely lamented fact that men outnumber women in a number of fields in STEM, including physics, mathematics, and computer science. The most commonly discussed explanations for the gender gaps are discrimination and socialization, and the most common policy prescriptions are targeted at those ostensible causes. However, a great deal of evidence in the behavioral sciences suggests that discrimination and socialization are only part of the story. The purpose of this paper is to highlight other aspects of the story: aspects that are commonly overlooked or downplayed. More precisely, the paper has two main aims. The first is to examine the evidence that factors other than workplace discrimination make a significant contribution to the gender gaps in STEM. These factors include relatively large average sex differences in career and lifestyle preferences, and relatively small average differences in cognitive aptitudessome favoring males, others favoring femaleswhich are associated with progressively larger differences the further above the average one looks. The second aim is to evaluate the evidence suggesting that these sex differences are not purely a product of social factors but also have a substantial biological (or "innate") component. A more complete picture of the many causes of the unequal sex ratios in STEM may productively inform policy debates, and is likely to improve women's situation across the STEM fields. Men, Women, and ScienceWhy the Differences and What Should Be Done?Never has the issue of gender disparities been as widely discussed, or as bitterly contested, as it has been in recent years. From the Oscars to the political podium, from TV shows to the workplace, disparities are identified and debate inevitably ensues. In the occupational realm, one of the primary focuses of this debate has been the differential representation of men and women in STEM (science, technology, engineering, and math). 1 This was epitomized by the infamous "Google memo," in which then-Google employee James Damore (2017) questioned the extent to which observed gender disparities in STEM are a product of workplace discrimination. The memo, and Damore's subsequent dismissal from Google, provoked a great deal of discussion and debate about the causes of STEM disparities and the origins of human sex differences. Unfortunately, much of this debate was decidedly inaccurate in its presentation of the research on the topic. A great deal was said about bias and discrimination, but relatively little about other factors contributing to STEM gender gaps (e.g., Chachra, 2017). Furthermore, to the extent that other factors were mentionedfactors such as average sex differences in academic interests these were typically attributed to socialization, rather than to biology or to a 1 Strictly speaking, the issue is not STEM per se, but rather STEM fields that focus on the non-living world, or that have a strong spatial or mathematical component. According to Ceci et al. (2014), the STEM fields should be divided into GE...

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