Dr. Arleen A. Leibowitz has over 30 years of experience in HIV research and policy, beginning with her leadership of the economics team on the HIV Cost and Services Utilization Study.  At UCLA, she directed the Policy Impact Core of the Center for HIV Prevention Services and continues in the role of co-Director.  Her focus is on the impact of public policies on HIV testing and prevention among at-risk groups as well as the use and financing of medical care for persons living with HIV (PLWH).  She has examined Medicaid costs of treating HIV, the effects of the Affordable Care Act on treatment for PLWH, and the impact of California budget cuts on HIV screening and prevention.  She takes a policy perspective on biomedical strategies for preventing HIV, including male circumcision and Pre-exposure prophylaxis.  Her finding that distribution of condoms in jails was highly cost-effective was used to support making condoms available in California prisons. Dr. Leibowitz is currently using a microsimulation model of HIV in Los Angeles County to predict the impact of alternative public policies on disparities in HIV incidence, viral suppression, and death across racial/ethnic groups.