William is a senior postdoctoral researcher at the University of Oxford’s Department of Social Policy and Intervention, working at the intersection of global health, social policy, and development studies. He is also a Research Fellow at Nuffield College and an Honorary Research Affiliate at the University of Cape Town’s Centre for Social Science Research.
His research focuses on identifying cost-effective combinations of social and health interventions to improve adolescent health and wellbeing across Africa. He has contributed to 29 peer-reviewed publications, including nine as first author, with a focus on evaluating the impacts of social protection and community health worker programmes on adolescent health, education, and child protection outcomes. His methodological expertise includes quantitative causal inference, multilevel modelling, and simulation-based economic decision modelling to inform policy and investment.
William is currently co-Principal Investigator on a Gates Foundation-funded project that uses economic and health impact modelling to assess the effects of girls’ empowerment interventions on child marriage in Nigeria. He is also co-PI on a project with the Government of Kenya and the World Bank to simulate the impact of a planned adolescent cash transfer programme, designed to support access to secondary school and delay adolescent pregnancy.
In 2024, William was awarded an Oxford Policy Engagement Fellowship to collaborate with UNICEF and Save the Children on research exploring children’s vulnerability and resilience to climate-related hazards. This ongoing partnership focuses on integrating social survey and satellite data to support evidence-based decision-making in this field.
Passionate about teaching, William lectures on structural interventions, the social determinants of health, and validity and bias in quantitative research.
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