Faculty Members

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S. Bryn Austin headshot

S. Bryn Austin, ScD

Dr. Austin is professor of social and behavioral sciences, Harvard T.H. Chan School of Public Health; director of fellowship research training, division of adolescent and young adult medicine, Boston Children’s Hospital; and director, Strategic Training Initiative for the Prevention of Eating Disorders: A Public Health Incubator. She also directs the Sexual Orientation and Gender Identity and Expression working group. Dr. Austin is a social epidemiologist and behavioral scientist who seeks to advance innovations in transdisciplinary science applied to eating disorders prevention, and the study of health inequities adversely affecting sexual minority and transgender youth.
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Mauricio Avendano, PhD

Dr. Avendano is professor of public policy and global health; and director, Institute of Gerontology, department of global health and social medicine, King’s College London; and adjunct associate professor, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health. His research leverages quasi-experimental methods and data from randomised controlled trials to examine the health consequences of social programmes and policies such as maternity leave and unemployment benefits, conditional cash transfers, pension system reform in Latin America, and urban and transportation policies. Previously, Dr. Avendano was a Bell Fellow here at the Harvard Pop Center.
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Till Bärnighausen, MD, PhD, ScD

Dr. Bärnighausen is the Alexander von Humboldt University Professor, University of Heidelberg; director, Heidelberg Institute of Public Health, Faculty of Medicine, University of Heidelberg; adjunct professor, Department of Global Health and Population, Harvard T.H. Chan School of Public Health; and senior faculty, Wellcome Trust’s Africa Health Research Institute (ARHI), South Africa. Till’s research focuses on developing and testing population health interventions that address large healthcare needs in poor countries, in particular for HIV and other chronic conditions such as diabetes and hypertension. He focuses on interventions that can be implemented in resource-poor settings, such as community health worker initiatives and novel interventions in nurse-led primary care clinics.

Sebastian Bauhoff, PhD

Sebastian Bauhoff is assistant professor of global health and economics in the Department of Global Health and Population, Harvard, T.H. Chan School of Public Health. Dr. Bauhoff’s research focuses on innovations in health care financing and service delivery that can increase access, efficiency and quality of care in low- and middle-income countries. He also examines ways to improve the design and implementation of health care policies and programs.
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Jason Beckfield, PhD

Jason Beckfield is associate director, Harvard Center for Population and Development Studies; chair, Department of Sociology; and professor of sociology, Harvard University. Professor Beckfield is a sociologist who studies the comparative political economy of population health, regional integration, globalization, stratification, and economic sociology. Conceptually, he is interested in how social and political institutions shape structures of inequality, both within and between national societies. Methodologically, he deploys comparative research methods to capitalize on and investigate the significant institutional variation among nation-states. His current work investigates the impact of European integration on economic inequality and the welfare state, the evolution of the network structure of international organizations, and the social determinants of health inequalities.
Head shot of Professor Lisa Berkman

Lisa Berkman, PhD

Lisa Berkman is director, Harvard Center for Population and Development Studies; and the Thomas D. Cabot Professor of Public Policy, Epidemiology, and Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. Berkman is a social epidemiologist whose work focuses extensively on psychosocial influences on health outcomes. Her research is oriented towards understanding social inequalities in health related to socioeconomic status, different racial and ethnic groups, and social networks, support and social isolation. The majority of her work is devoted to identifying the role of social networks and support in predicting declines in physical and cognitive functioning, and the onset of disease (especially cardiovascular or cerebrovascular disease) and mortality. She has been an innovator in linking social experiences with physical and mental health outcomes, and co-edited the seminal textbook Social Epidemiology.
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Sara Bleich, PhD

Sara Bleich, professor of public health policy, Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, and the Carol K. Pforzheimer Professor at the Radcliffe Institute for Advanced Study. Dr. Bleich’s research provides evidence to support policy alternatives for obesity prevention and control, particularly among populations at higher risk for obesity. Her goal is to fill critical gaps in the scientific literature about the complex problem of obesity.
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Jason Block, MD, MPH

Jason Block, associate professor, population medicine, Department of Population Medicine, Harvard Medical School/Harvard Pilgrim Health Care Institute. Dr. Block is a practicing general internal medicine physician who also supervises internal medicine residents in their continuity primary care clinics. His primary research interests are the psychosocial and contextual influences contributing to the obesity epidemic, point-of-purchase interventions to improve dietary choices, and financial incentives to promote weight loss. Previously, Dr. Block was a Robert Wood Johnson Foundation Health & Society Scholar here at the Harvard Pop Center.

Barry Bloom, PhD

Barry Bloom, Joan L. and Julius H. Jacobson Research Professor of Public Health, Harvard T.H. Chan School of Public Health. Dr. Bloom is a recognized pioneer in the field of global health, and has served as a long-time advisor to the World Health Organization. Trained in immunology, he has made important contributions in the areas of infectious diseases, vaccines and global health policy, mainly focusing on the immunology and pathogenesis of leprosy and tuberculosis.
Head shot of David Bloom

David Bloom, PhD

David Bloom, Clarence James Gamble Professor of Economics and Demography; and director, Program on the Global Demography of Aging, Harvard T.H. Chan School of Public Health. Dr. Bloom is an economist and demographer whose research has focused on the application of microeconomic theory to the fields of labor, population health, development, and environment, with a focus on international health and demography. In conjunction with David Canning, Bloom’s research has made major contributions to the study of the economic consequences of population change, identifying favorable changes in age structure associated with declining fertility (the “demographic dividend”) as an important window of opportunity for rapid economic development.
Head shot of Lawrence Bobo

Lawrence D. Bobo, PhD

Lawrence D. Bobo, Harvard College Professor, W. E. B. Du Bois Professor of the Social Sciences, Harvard University with appointments in the Department of Sociology and the Department of African and African American Studies. Dr. Bobo’s research—focused on the intersection of social inequality, politics, and race—has been published in numerous scholarly journals, and he is the author of several books including Racial Attitudes in America: Trends and Interpretations, and Prejudice in Politics: Group Position, Public Opinion, and the Wisconsin Treaty Rights Dispute.
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Sissela Bok, MA, PhD

Sissela Bok, senior visiting fellow, Harvard Center for Population and Development Studies. Dr. Bok is a writer and philosopher. Formerly, she was a professor of philosophy at Brandeis University. She received her BA and MA in psychology at the George Washington University, and her PhD in philosophy at Harvard University. She has written several critically acclaimed books including Lying: Moral Choice in Private and Public Life; Secrets: On the Ethics of Concealment and Revelation; A Strategy for Peace: Human Values and the Threat of War; Alva Myrdal: A Daughter’s Memoir; Common Values; and Mayhem: Violence as Public Entertainment. Bok has co-edited The Dilemmas of Euthanasia and Ethics Teaching in Higher Education, and she has co-authored Euthanasia and Physician-Assisted Suicide.
Head shot of Mary Brinton

Mary C. Brinton, MA, PhD

Mary C. Brinton, Reischauer Institute Professor of Sociology, Harvard University; and director, Reischauer Institute for Japanese Studies. Dr. Brinton’s focal areas include: gender inequality, education, labor markets, Japanese society, and economic and comparative sociology. She studies institutional change and its effects on individual action, and is particularly interested in labor, parental leave, and population issues in low-fertility countries.

Orfeu Buxton, PhD

Orfeu Buxton, professor, department of biobehavioral health, and director, Sleep, Health, and Society Collaboratory, Pennsylvania State University; associate neuroscientist, Brigham and Women’s Hospital; and adjunct associate professor, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health. Dr. Buxton’s research primarily focuses on the physiologic and social causes, and health consequences of chronic sleep deficiency in the workplace, home, and society.
Head shot of David Canning

David Canning, PhD

David Canning, Richard Saltonstall Professor of Population Science, and professor of economics and international health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health; and deputy director, Program on the Global Demography of Aging at Harvard. Dr. Canning’s research focuses on the role of demographic change (e.g. the effect of changes in age structure on aggregate economic activity) and health improvements (e.g. health as a form of human capital and its affect on worker productivity) in economic development.
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Marcia Castro, PhD

Marcia Castro, Andelot Professor of Demography; and chair, Department of Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. Castro is a demographer who studies geographical and demographic distribution of infectious diseases, particularly malaria. She is particularly interested in the interaction between socioeconomic status, individual behavior, local ecology, geography, and health in urban areas in Africa and rural areas in the Amazon.
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Amitabh Chandra, PhD

Amitabh Chandra, Ethel Zimmerman Wiener Professor of Public Policy, and director of health policy research, Harvard Kennedy School; and the Henry and Allison McCance Professor of Business Administration, Harvard Business School. Dr. Chandra is a health economist studying racial disparities, and technology and productivity within the  health care sector. His research has been supported by the National Institute of Aging, the National Institute of Child Health and Development, the Robert Wood Johnson Foundation, and has been published in numerous scholarly journals.
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Paul Y. Chang, PhD

Paul Y. Chang, associate professor of sociology, Harvard University. Dr. Chang’s research on social and political change in South Korea has appeared in several disciplinary and area studies journals including Social Forces, Mobilization, and the Journal of Korean Studies. His current project explores the emergence of non-traditional family structures in South Korea, including single-parent and  single-person households, and multicultural families.
Head shot of Jessica Cohen

Jessica Cohen, PhD

Jessica Cohen, Bruce A. Beal, Robert L. Beal, and Alexander S. Beal Associate Professor of Global Health, Harvard T.H. Chan School of Public Health; co-founder,  TAMTAM, Inc. (Together Against Malaria); and faculty affiliate, Jameel-Poverty Action Lab (J-PAL). Dr. Cohen is a health and development economist whose research applies the methods of program design, randomized trials, and impact evaluation to malaria, and maternal and child health programs and policies in SSA
Head shot of Kevin Croke

Kevin Croke, PhD

Kevin Croke, assistant professor of global health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. Croke’s work has two main areas of focus. In one strand, he uses qualitative methods to study the political economy of health systems in developing countries. In another set of projects, he uses empirical methods—including experimental approaches—to study political economy and public service delivery in developing countries. Kevin Croke holds a PhD in international development from Johns Hopkins University School of Advanced International Studies (SAIS), and completed a post-doctoral fellowship in political economy at the Harvard Chan School.

David Cutler, PhD

David Cutler, Otto Eckstein Professor of Applied Economics, Faculty of Arts and Sciences, Harvard University. Dr. Cutler is a health economist studying how it is that people are experiencing better health later in life than previous generations; the impact of medical care on the public sector; and racial and ethnic segregation. He holds a secondary appointments at the Harvard Kennedy School and the Harvard T.H. Chan School of Public Health, and held the title of Harvard College Professor from 2014–2019. Previously, he served in the Clinton administration, and was senior health care advisor to Barack Obama.
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Hossein Estiri, PhD

Hossein Estiri, assistant professor of medicine, Harvard Medical School. Dr. Estiri is a computational demographer, data scientist, and clinical research informaticist. Dr. Estiri applies a variety of data science methodologies—including geo-spatial and statistical learning techniques—to develop computational models that explain complex demographic, ecological, and health outcomes.
Head shot of Wafai Fawzi

Wafaie Fawzi, DrPH, MBBS, MPH, MS

Wafaie Fawzi, Richard Saltonstall Professor of Population Sciences, and professor of nutrition, epidemiology, and global health, Harvard T.H. Chan School of Public Health. Dr. Fawzi’s research is focused on addressing global health issues in populations in Tanzania, Uganda, Sudan, India, and other developing countries. His primary academic interests include the design and implementation of randomized controlled trials and observational studies of maternal, neonatal and child health, and infectious diseases, with emphasis on nutritional factors. He also focuses on maternal mortality and morbidity, as well as interventions to reduce infections among women, improve maternal nutrition, and strengthen health systems.
Head shot of Ann Forsyth

Ann Forsyth, PhD

Ann Forsyth, Ruth and Frank Stanton Professor of Urban Planning; co-leader, Healthy Places Design Lab and the New Towns Initiative. Trained in planning and architecture, Dr. Forsyth works mainly on the social aspects of physical planning and urban development. The big issue behind her research and practice is how to build more sustainable and healthy cities. She has analyzed the success of planned alternatives to sprawl, with a focus on the tensions between social and ecological values in urban design.

Maria Glymour, ScD

Maria Glymour, professor, department of epidemiology & biostatistics, UCSF School of Medicine; director, UCSF PhD program in Epidemiology and Translational Science; and adjunct assistant professor, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health. Dr. Glymour’s research focuses on how social factors experienced across the life course—from infancy to adulthood—influence cognitive function, dementia, stroke, and other health outcomes in old age. Her recent work has focused on understanding the social and geographic patterning of stroke and stroke recovery, and on overcoming the methodological challenges of analyzing cognitive outcomes.
Claudia Goldin standing in front of Abstract Art

Claudia Goldin, PhD

Claudia Goldin, PhD, Henry Lee Professor of Economics, Harvard University; and director, NBER’s Development of the American Economy program. Dr. Goldin is an economic historian and a labor economist. Her research covers a wide range of topics, including the female labor force, immigration, income inequality, technological change, education, and the economic gender gap.

Roberto G. Gonzales, PhD

Roberto G. Gonzales, professor of education, Harvard Graduate School of Education. Dr. Gonzales’ research centers on contemporary processes of immigration and social inequality, and stems from theoretical interests at the intersection of race and ethnicity, immigration, and policy. In particular, his research examines the effects of legal contexts on experiences of vulnerable and hard-to-reach immigrant youth populations.

Steven Gortmaker, PhD

Steven Gortmaker, professor of the practice of health sociology, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health; and co-director, Harvard T.H. Chan School of Public Health Prevention Research Center (HPRC). Dr. Gortmaker’s research is focused on the health of children and adolescents, particularly households living in poverty and minority populations. The major goal of his research is to identify modifiable risks for morbidity and mortality in the young, and to both initiate and evaluate interventions to improve these outcomes.

Rema Hanna, PhD

Rema Hanna, the Jeffrey Cheah Professor of South-East Asia Studies, Harvard Kennedy School; and co-director, Evidence for Policy Design (EPoD) research program at the Center for International Development, Harvard University. From measuring discrimination within education in India, to analyzing data from field experiments that assess the efficacy of various targeting methodologies for social safety net programs, Dr. Hanna’s research sheds light on how to improve the provision of public services in developing countries.
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Russ Hauser, MD, MPH, ScD

Russ Hauser, Frederick Lee Hisaw Professor of Reproductive Physiology, Departments of Environmental Health, and Epidemiology, Harvard T.H. Chan School of Public Health. Dr. Hauser’s research interests are in the fields of reproductive, perinatal and pediatric epidemiology. He focuses on the impact of environmental chemicals, such as endocrine disruptors, on male and female fertility, pregnancy outcomes, and children’s health.

Miguel Hernan, MD, ScM, MPH, DrPH

Miguel Hernan, Kolokotrones Professor of Biostatistics and Epidemiology, Departments of Biostatistics and Epidemiology, Harvard T.H. Chan School of Public Health. Miguel studies and implements causal inference methods to evaluate strategies for the treatment and prevention of disease. Together with collaborators in several countries, he designs analyses of healthcare databases, epidemiologic studies, and randomized trials.

Christopher Sandy Jencks, AB, MEd

Christopher S. Jencks, the Malcolm Wiener Professor of Social Policy, Harvard Kennedy School. Professor Jencks studies family structure, welfare, and poverty. His research deals with changes in family structure over the past generation, the costs and benefits of economic inequality, the extent to which economic advantages are inherited, and the effects of welfare reform.
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Stephanie Jones, PhD

Stephanie Jones, Gerald S. Lesser Professor in Early Childhood Development, Harvard Graduate School of Education. Dr. Jones is a developmental psychologist trained in child development, prevention science, and social policy. Her research investigates: the causes and consequences of social-emotional problems and competencies—including the effects of poverty and exposure to violence on children and youth’s social, emotional, and behavioral development; and the strategies, programs, interventions, and pedagogy that foster social-emotional competencies among children, adults, and environments.

Kathleen Kahn, MBBCh, MPH, PhD

Kathleen Kahn, professor, health and population division, School of Public Health, University of the Witwatersrand; and senior scientist, MRC/Wits Rural Public Health and Health Transitions Research (Agincourt). Dr. Kahn’s research interest include health transitions; burden of disease assessments; child health and development; integrated chronic care systems; and interventions to reduce risk factors for metabolic disease.

Sabra L. Katz-Wise, PhD

Sabra L. Katz-Wise, assistant professor of pediatrics, Harvard Medical School; and co-founder, the Alliance of Gender Affirming Professionals (AGAP). Dr. Katz-Wise is a developmental psychologist with a focus on gender and women’s studies, and social epidemiology. Her research investigates sexual orientation and gender identity development, sexual fluidity, health disparities related to sexual orientation and gender identity in adolescents and young adults, and psychosocial functioning in families with transgender youth.
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Ichiro Kawachi, MD, MBChB, PhD

Ichiro Kawachi, John L. Loeb and Frances Lehman Loeb Professor of Social Epidemiology, Harvard T.H. Chan School of Public Health. Considered a leading expert in the area of social epidemiology, Dr. Kawachi’s research areas include social determinants of health, psychosocial risk factors for heart disease, health disparities, and globalization and population health. He co-edited the seminal textbook Social Epidemiology. Co-Editor in Chief of the international journal Social Science & Medicine, as well as the sister open access journal, SSM – Population Health.
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Alexandra Killewald, PhD

Alexandra Killewald, PhD, professor of sociology, Harvard University. Dr. Killewald’s research takes a demographic approach to the study of social stratification. Much of her work focuses on the work-family intersection, with a special interest in wealth inequality, and the role of parents’ wealth in shaping the outcomes of their adult children. She has also explored the effects of marriage and parenthood on workers’ wages, and the associations between women’s earnings and their time in household labor.

Gary King, PhD

Gary King, Albert J. Weatherhead III University Professor; and director, Institute for Quantitative Social Science, Harvard University. Dr. King develops methods and software for many areas of social science research, ranging from statistical theory to practical application. His work on inferring individual behavior from aggregate data on groups, and methods for achieving cross-cultural comparability in survey research has been used extensively in many practical contexts in academia, government, consulting, and private industry.
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Nancy Krieger, PhD

Nancy Krieger, professor of social epidemiology, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health; and chair of the interdisciplinary concentration Women, Gender, and Health at the Harvard Chan School. Dr. Krieger is a social epidemiologist, with a background in biochemistry, philosophy of science, and history of public health. Her research focuses on social inequalities in health, and as an activist she is engaged in issues around social justice, science, and health.

Laura Kubzansky, MPH, PhD

Laura Kubzansky, Lee Kum Kee Professor of Social and Behavioral Sciences; director, Society and Health Laboratory; and co-director, Lee Kum Sheung Center for Health and Happiness, Harvard T.H. Chan School of Public Health. Dr. Kubzansky has published extensively on the role of psychological and social factors in health, with a particular focus on the effects of stress and emotion on heart disease. She also conducts research on whether stress, emotion and other psychological factors may help to explain the relationship between social status and health.

David Laibson, PhD

David Laibson, Harvard College Professor, the Robert I. Goldman Professor of Economics, Harvard University; and research associate in the Asset Pricing, Economic Fluctuations, and Aging Working Groups, National Bureau of Economic Research. Dr. Laibson leads the Foundations of Human Behavior Initiative at Harvard. His research focuses on the topic of behavioral economics. He is a recipient of the TIAA-CREF Paul A. Samuelson Award for Outstanding Scholarly Writing on Lifelong Financial Security, and has been awarded Harvardʼs ΦΒΚ Prize.

Michèle Lamont, PhD

Michèle Lamont, professor of sociology, and African and African American studies; the Robert I. Goldman Professor of European Studies; and director, the Weatherhead Center for International Affairs, Harvard University. A cultural and comparative sociologist, Lamont is the author of a dozen books and edited volumes and over one hundred articles and chapters on a range of topics including culture and inequality, racism and stigma, academia and knowledge, social change and successful societies, and qualitative methods.

Joscha Legewie, PhD

Joscha Legewie is assistant professor of sociology. His work is motivated by a theoretical interest in the social, spatial, and temporal processes that lead to inequality. He examines how peer groups, schools, neighborhoods, and the sequencing of events produce macro patterns of social inequality and influence the relations between social groups. Some of his recent work investigates the social costs of law enforcement activity.
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Cindy H. Liu, PhD

Cindy H. Liu, assistant professor of pediatrics, Massachusetts General Hospital; director of multicultural research, Commonwealth Research Center, Beth Israel Deaconess Medical Center; and instructor in psychiatry, Harvard Medical School. Dr. Liu’s research focuses on culture and socio-emotional development, and race and ethnic disparities as they related to maternal and child mental health.

Chunling Lu, PhD

Chunling Lu, PhD, assistant professor of medicine, and global health and social medicine, Harvard Medical School; and director, Program in Global Health Economics and Social Change, Harvard Medical School. Her research focuses on providing rigorous scientific evidence for designing health care financing strategies that will effectively improve health outcomes for disadvantaged populations.

Nicole Maestas, MPP, PhD

Nicole Maestas, associate professor of health care policy, Harvard Medical School; research associate, National Bureau of Economic Research (NBER); and associate director, NBER’s Disability Research Center. Dr. Maestas researches how the health and disability insurance systems affect individual economic behaviors, such as labor supply and the consumption of medical care. Her work has shown that the federal disability insurance system discourages employment by people with disabilities.
Head shot of Dr. Kenneth Mayer

Kenneth Mayer, MD

Kenneth Mayer, MD, professor, Harvard Medical School; professor, Department of Global Health and Population, Harvard T.H. Chan School of Public Health; and director, HIV Prevention Research, Beth Israel Deaconess Medical Center. Dr. Mayer has provided care to people living with HIV since the beginning of the AIDS epidemic. He developed some of the first cohort studies and prevention interventions dealing with HIV, and is the founding medical research director of The Fenway Institute where he continues to teach and mentor medical students, residents, and fellows.

Margaret McConnell, PhD

Margaret McConnell, associate professor of global health economics, Department of Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. McConnell’s research combines behavioral economics with field and laboratory experiments to better understand and evaluate policies designed to change health behaviors, with a specific focus on maternal and child health. She is a former postdoctoral fellow in the Program on the Global Demography of Aging here at the Harvard Pop Center.

Michael Reich, MA, PhD

Michael Reich, Taro Takemi Professor of International Health Policy, Department of Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. Reich is an expert on international health policy, particularly the political dimensions of public health policy and pharmaceutical policy. His research focuses on access to health technologies in poor countries. He has provided policy advice to many organizations around the world, including national governments, international agencies, non-governmental organizations, private foundations, private corporations, and public-private partnerships.

Tracy Richmond, MD

Tracy Richmond, assistant professor of pediatrics, Harvard Medical School. Dr. Richmond’s research focuses on environmental contexts such as neighborhoods and schools and their contribution to racial/ethnic disparities in adolescent health. More specifically, she studies the attributes of neighborhoods and schools that may contribute to differential rates of obesity and obesity-related behaviors in adolescents.

Sari Reisner, ScD

Sari Reisner, assistant professor of pediatrics, Harvard Medical School and Boston Children’s Hospital; assistant professor, Department of Epidemiology, Harvard T.H. Chan School of Public Health; and affiliated research scientist, The Fenway Institute. Trained as a social and psychiatric epidemiologist, Dr. Reisner focuses on:(1) health disparities and inequities in lesbian, gay, bisexual, transgender, queer/questioning (LGBTQ) populations; (2) the epidemiology of HIV and other sexually transmitted infections (STIs); and (3) psychiatric epidemiology of mental health and substance use risks and resiliencies across adolescence and young adulthood.

Charles E. Rosenberg, PhD

Charles E. Rosenberg, Ernest E. Monrad Professor in the Social Sciences, Harvard University. Dr. Rosenberg has written widely on the history of medicine and science. He is a recipient of the William H. Welch Medal of the American Association for the History of Medicine (AAHM) and the George Sarton Medal (for lifetime achievement) from the History of Science Society. He served as president of the AAHM, and the Society for the Social History of Medicine (UK), and was on the executive board of the Organization of American Historians and on the council of the History of Science Society. He has been awarded fellowships by the Woodrow Wilson, the Guggenheim, and the Rockefeller Foundations. He is a member (and council member) of the American Philosophical Society, and Institute of Medicine, and fellow of the American Antiquarian Society, and the American Academy of Arts & Sciences. His editorial responsibilities have included a term as editor of Isis—the History of Science Society journal—and editor of a series at Cambridge University Press (on the social history of medicine) and the Johns Hopkins University Press (on the history of disease).

Meredith L. Rowe, EdD

Meredith L. Rowe, Saul Zaentz Professor of Early Learning and Development; and faculty director, Human Development and Psychology program, Harvard Graduate School of Education. Professor Rowe is an educational psychologist interested in understanding and preventing socioeconomic disparities in learning during early childhood. Her research focuses on examining the role of parent and family factors in children’s language and literacy development, and leveraging this knowledge to develop intervention strategies for low-income families.

Joel A. Salinas, MD, MBA, MS

Joel A. Salinas, MD, MBA, MS, instructor in neurology, Harvard Medical School. Dr. Salinas is a clinical neurologist with a subspecialty in behavioral neurology and neuropsychiatry, and a growing interest in social epidemiology. He researches the social and behavioral determinants of brain health, and develops interdisciplinary strategies to prevent the development of age-related neurologic diseases.


Rob Sampson, PhD

Rob Sampson, PhD, the Henry Ford II Professor of the Social Sciences, Faculty of Arts and Sciences, Harvard University. Professor Sampson’s research and teaching cover a variety of areas including crime, disorder, the life course, neighborhood effects, civic engagement, inequality, “ecometrics,” and the social structure of the city.

Benjamin Seligman, MD, PhD

Benjamin Seligman, MD, PhD, a fellow in Geriatric Medicine, Harvard Medical School. Dr. Seligman is a geriatrician and demographer. He is interested in frailty, and studies how social determinants of health influence biological processes that lead to frailty in older adults.
Gita Sen at Harvard Pop Center

Gita Sen, PhD

Gita Sen, PhD, distinguished professor and director, Ramalingaswami Centre on  Equity & Social Determinants of Health, Public Health Foundation of India; adjunct professor of global health and population, Harvard T.H. Chan School of Public Health; general coordinator, DAWN (Development Alternatives with Women for a New Era). Dr. Sen’s key research areas are health and population; gender and development; and inequality.

Mario L. Small, PhD

Mario L. Small, PhD, Grafstein Family Professor of Sociology, Harvard University. Author of numerous award-winning books and articles on urban poverty, support networks, qualitative and mixed methods, and a host of other topics, Professor Small strives to transform how social scientists use newly available forms of data to understand urban poverty. His work focuses on mobility, social networks, and neighborhood and family demography.

Susan T. Stewart, PhD

Susan T. Stewart, PhD, research specialist, National Bureau of Economic Research. Dr. Stewart works with Harvard economist David Cutler as part of a team of researchers who are developing a Satellite National Health Account for the United States. An overarching goal of this account is to measure the output of the health system in terms of quality-adjusted life expectancy. She has been the lead analyst and author of the publications on health assessment for this project.
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S (Subu) V Subramanian, PhD

S (Subu) V Subramanian, PhD, professor of population health and geography, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health. Dr. Subramanian’s research focuses on understanding the role of geographic, spatial and institutional contexts (e.g., neighborhoods, schools, workplaces) in influencing population health; empirical multi-level examination of the pathways between macro socioeconomic environments (e.g., income inequality and social capital) and population health and health inequalities; and the methodological challenges to modeling causal contextual and neighborhood effects. He is co-editor in chief of the international journal Social Science & Medicine.

Stephen Tollman, MA, MPH, MBBCh-MMed, PhD

Stephen Tollman, MA, MPH, MBBCh-MMed, PhD, director, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health; associate professor and head, health and population division, School of Public Health, University of the Witwatersrand. In the context of the rapidly transitioning society of sub-Saharan Africa, Dr. Tollman is focused on better understanding the new burden of chronic diseases, and how to strengthen primary health care systems.

Alexander Tsai, MD, PhD

Alexander Tsai, MD, PhD,board-certified staff psychiatrist, Massachusetts General Hospital; associate professor of psychiatry, Harvard Medical School; and honorary lecturer, Mbarara University of Science and Technology, Mbarara. Uganda. Dr. Tsai’s research aims to shed light on how large-scale social forces affect health and mental health in resource-limited settings, particularly among people living with HIV. Previously, he was a Robert Wood Johnson Foundation Health & Society Scholar here at the Harvard Pop Center.

Stéphane Verguet, MS, MPP, PhD

Stéphane Verguet, MS, MPP, PhD, assistant professor of global health, Harvard T.H. Chan School of Public Health. Dr. Verguet’s multidisciplinary research focuses on health decision science and priority setting, particularly on the development of mathematical and computational decision-making models to better design health policies. His research interests include health economics, cost-effectiveness analysis, equity, and health systems performance. One important area of his work focuses on the estimation of non-health benefits, particularly the financial risk protection and poverty reduction benefits, of health policies and interventions.

Jocelyn Viterna, PhD

Jocelyn Viterna, PhD, professor of sociology; and director of undergraduate studies in sociology, Harvard University. Dr. Viterna’s research focal areas include: the politics of reproduction; gender and mobilization in war; and development and the third sector. She examines how social mobilization affects gender norms and practices in states, warfare, institutions, and communities, and evaluates how poor communities pursue their own development by recruiting “projects” from humanitarian organizations.
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Mary Waters, MA, PhD

Mary Waters, MA, PhD, PVK Professor of Arts and Sciences; and M.E. Zukerman Professor of Sociology, Department of Sociology, Harvard University. Dr. Waters specializes in the study of immigration, inter-group relations, the formation of racial and ethnic identity among the children of immigrants, and the challenges of measuring race and ethnicity.

Elissa R. Weitzman, ScD

Elissa R. Weitzman, ScD, associate professor of pediatrics, Harvard Medical School; associate scientist in Adolescent/Young Adult (AYA) medicine, Boston Children’s Hospital; and faculty member, Computational Health Informatics Program (CHIP), Boston Children’s Hospital. A social-behavioral scientist, Dr. Weitzman focuses on understanding and ameliorating adolescent and young adult health. Grounded in a bio-psychosocial model of disease and a developmental/life course perspective, her  research is focused on advancing the understanding of the epidemiology of pediatric onset chronic disease and co-occurring risks for psychosocial and behavioral health problems, including substance use.
David Williams headshot

David Williams, MPH, PhD

David Williams, MPH, PhD, Florence Sprague Norman and Laura Smart Norman Professor of Public Health; Chair, Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health; and professor of African and African American studies and sociology, Harvard University. David Williams is an internationally recognized authority on social influences on health. His research has focused on trends and determinants of socioeconomic and racial disparities in health, the effects of racism on health and the ways in which religious involvement can affect health.
Michelle Williams head shot

Michelle Williams, ScD

Michelle Williams, ScD, dean of faculty, Harvard T.H. Chan School of Public Health; and Angelopoulos Professor in Public Health and International Development, Harvard T.H. Chan School of Public Health and Harvard Kennedy School. Dr. Williams is a nationally recognized epidemiologist, public health scientist, educator and academic leader. Her research spotlights reproductive and perinatal epidemiology, with a particular focus on integrating epidemiological, biological and molecular approaches into rigorously designed clinical epidemiology research projects. 
Head shot of Yousafzai

Aisha Khizar Yousafzai, PhD

Aisha Khizar Yousafzai, PhD, associate professor of global health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health. Dr. Yousafzai’s research focuses on promoting the well-being of children and the stability of families among disadvantaged and vulnerable populations in low- and middle-income countries, with a special focus on south Asia, and east and southern Africa. She examines both child development and systems as a whole, specifically showing how interventions that can promote early childhood development can be mainstreamed effectively into these existing systems.

Xiang Zhou, PhD

Xiang Zhou, PhD, assistant professor, Department of Sociology, Harvard University. Dr. Zhou’s research focuses on quantitative methodology, social stratification and mobility, and contemporary Chinese society.