Dr. Jay Bhattacharya is an assistant professor of medicine and a CHP/PCOR core faculty member. His research focuses on the constraints that vulnerable populations face in making decisions that affect their health, as well as the effects of government policies and programs designed to benefit vulnerable populations. He has published research on the elderly, adolescents, HIV/AIDS and managed care. Most recently, he has researched the regulation of the viatical-settlements market (a secondary life-insurance market that often targets HIV patients) and summer/winter differences in nutritional outcomes for low-income American families. He is also working on a project examining the labor-market conditions that help determine why some U.S. employers do not provide health insurance. He worked for three years as an economist at the RAND Corporation in Santa Monica, Calif., where he also taught health economics as a visiting assistant professor at the University of California, Los Angeles. He received a B.A. in economics and an M.D. and a Ph.D. from Stanford University. He speaks French and Bengali.