Harold D. Green

Photo of Harold Green
Senior Behavioral and Social Scientist
Off Site Office


Ph.D. in cultural anthropology, University of Florida; M.S. in botany, University of Georgia


Harold D. Green, Jr. (Hank) is an affiliated adjunct senior behavioral scientist at the RAND Corporation and founding director of the RAND Center for Applied Network Analysis and System Science. He uses network analyses to understand the social and cultural determinants of health.

Currently, Green leads a study funded by the National Institutes of Health (NIH) that uses medical claims data to explore factors that affect HIV pre-exposure prophylaxis prescribing behavior among healthcare providers. Previously, Green led a longitudinal NIH study investigating the influence and selection processes associated with substance use and other risk behaviors among U.S. adolescents. Other projects focus on HIV-related conspiracy beliefs among HIV-positive African-Americans in Los Angeles; sexual health and risk-taking among men who have sex with men, commercial sex workers, and transgender individuals in Beirut; and how changing network composition and structure are linked to HIV care adherence among HIV-positive Ugandans.

He also investigates connections among network structure and composition, substance use, and risky sexual behavior among people experiencing homelessness. Green designs and implements specialized software to collect longitudinal personal network data, developing a new conceptual model for understanding network-based influences on health behaviors, and applying new statistical methodologies for the analysis of personal network data. 

Green holds a Ph.D. in anthropology from the University of Florida. He is currently an associate professor in the Department of Applied Health Science at the University of Indiana School of Public Health in Bloomington.