Jerry A. Jacobs, PhD is Professor of Sociology at the University of Pennsylvania, where he has taught since earning his PhD in sociology at Harvard in 1983. He has served as the Editor of the American Sociological Review, President of the Eastern Sociological Society, Founding President of the Work and Family Researchers Network, and was a Fellow at the Center for Advanced Study in the Behavioral Sciences at Stanford in 2018-2019. He is the author of six books, including In Defense of Disciplines, published by the University of Chicago Press in 2014, and 85 research papers. His studies have addressed a number of aspects of women's employment, including authority, earnings, working conditions, part-time work and work-family conflict, and entry into male-dominated occupations. He is currently technology and carework with an emphasis on elder-care staffing issues.