Dr. Alejandro Arrieta is a health economist with an active research portfolio in health policy and global health. He studies how healthcare financing and organization influence utilization and quality of care; for example, how health reforms have changed the role of the private sector in health systems in Latin America or how physician incentives affect the utilization and quality of care. He also researches the economic impact of chronic diseases. Dr. Arrieta has served as principal investigator, co-investigator and consultant for several studies assessing cost-benefit and cost-effectiveness analysis. These studies cover current issues such as technological devices to improve self-control of hypertension, care management programs to improve diabetes control, and contingency management programs to change smoking behavior.