Kristen Underhill is an Associate Professor of Law at Columbia Law School. Her scholarship focuses on health law, with a particular interest in how the law influences individual decisions about risk and health behavior. She teaches health law and torts. Underhill studies how laws and regulations affect individual choices by arranging incentives, shaping opportunities, influencing underlying preferences, and communicating information about social norms. Recent projects have focused on how financial incentives influence attitudes about organ donation; the influence of implicit racial bias in altruistic decisions; dispute resolution for injuries and complaints related to biomedical research; and relationships between harm reduction and risk behavior. She was previously PI of a five-year study of access to pre-exposure prophylaxis and other biomedical HIV prevention approaches, funded by the National Institutes of Health (NIH). Underhill received her J.D. from Yale Law School in 2011, serving as editor-in-chief of the Yale Journal of Health Policy, Law, and Ethics. Underhill also holds a D.Phil. in evidence-based social intervention from the University of Oxford, and she completed an NIH-funded postdoctoral research fellowship at Brown University's Center for Alcohol and Addiction Studies.