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Welcome to the Marginalization-Related Diminished Returns (MDRs) Research Center. MDRs is a research center focused on the experiences of middle-class Black people and their health consequences. We’re thrilled that you’ve decided to visit us - please browse our site to discover what are MDRs all about.

MDRs hold for almost all economic and health outcomes. Here is MDRs reviewed by Harvard University. Here is a link to 100+ papers showing MDRs. MDRs papers in children is available hereHere is a lecture summarizing 50+ MDRs papers.



Dr. Shervin Assari is an associate professor of urban public health and family medicine at Charles R Drew University of Medicine and Science. He is a social epidemiologist who studies the intersectional effects of race and socioeconomic status (SES) on Americans' physical and mental health over the life course. His work on Marginalization-related Diminished returns (MDRs) explains how social stratification, residential segregation, and structural racism deteriorate the health and well-being of middle-class Black families. The MDRs go beyond health disparities that are due to poverty and low SES and explain why racial health inequalities persist across the full SES spectrum. Dr. Assari and colleagues have authored more than 100 peer-reviewed papers on MDRs. He is an elected fellow of the American Academy of Health Behavior (AAHB), New York Academy of Medicine (NYAM), and the Society of Behavioral Medicine (SBM). Here is a link to his 400+ papers. Here is a link to his CV.

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