Lina Walker is Vice President of Health Security in AARP's Public Policy Institute. She leads the Institute's research on health policy to improve the health and well-being of older people. She has over 20 years of experience working on a wide range of health, long-term care, and economic security issues, most recently focusing on how data and technology are shaping the health care landscape and what that means for consumers, patients, and family caregivers. Prior to joining AARP, she was at the Brookings Institution and was research professor at Georgetown University. Dr. Walker's experience includes working at a congressional agency, the Congressional Budget Office, and also for state government, in the Office of Policy Analysis of the Maryland General Assembly. She has a Ph.D. in economics from the University of Michigan.