Emily Oster is a professor of economics at Brown University and the author of Expecting Better, Cribsheet, The Family Firm, and The Unexpected. She writes the newsletter ParentData and her work has been featured in The New York Times, The Wall Street Journal, The Washington Post, The Atlantic, and Bloomberg.com. She has two children.


Dr. Nathan Fox is a professor of obstetrics and gynecology and maternal fetal medicine at the Icahn School of Medicine at Mount Sinai in New York City. He has a busy clinical practice of high-risk obstetrics, regularly publishes his peer-reviewed clinical research, and is invited to lecture nationally and internationally on pregnancy-related topics. He is also the host of the Healthful Woman podcast. He has four children.