I am an Associate Professor in Health Economics, specialising in environmental health. I have 18 years’ experience in the economics and financing of water, sanitation and hygiene (WASH) services in African and Asian countries. However, my current focus is new research interests in UK environmental health economics, particularly climate adaptation in housing. I lead the Preferences, Behaviour and Outcomes theme of the Global Health Economics Centre, and am on the steering an associate member of the Environmental Health Group.
I completed my PhD in health economics at LSHTM with ESRC funding, and hold an MSc Development Economics. I was awarded a post-doctoral fellowship from the Reckitt Global Hygiene Institute to develop research on economic evaluation of hygiene. Before joining LSHTM, I established and grew a six-strong water team at Oxford Policy Management, leading WASH consulting projects for the World Bank, DFID and UNICEF. Prior to that, I was in WaterAid’s policy team working on a variety of research and advocacy, including a period based in Timor-Leste.
My methodological interests are:
- Measuring and valuing quality of life outcomes for economic evaluation
- Benefit-cost and cost-effectiveness analyses
- Preference elicitation using discrete choice experiments.
I co-founded the WASH Economics Conference in 2023 – it is now an annual event which I continue to co-organise. The first edition was at LSHTM, with subsequent editions in France (2024), the USA (2025) and India (2026). Could you host a future edition? get in touch!
Affiliations
Centres
Teaching
PhD supervision: I am lead supervisor of a Bloomsbury-funded PhD student (Omran Musa) and a DrPH student (Jahanzaib Sohail). I co-supervised a recently-completed DrPH student (Seungman Cha).
MSc teaching: I am one of the module organisers for LSHTM's distance learning module on WASH and tutor on MSc Health Policy, Planning & Financing. I also teach elements of in-person modules including Economic Analysis for Health Policy and Ethics, Public Health & Human Rights.
MSc dissertations: I enjoy supervising MSc dissertations, two of which have subsequently been extended to produce journal articles (here and here).
Research
For completed studies, see Google Scholar.
Ongoing studies I am involved in include:
UK environmental health
- Discrete choice experiment focused on non-surgical interventions for pelvic organ prolapse in UK women
- Economic evaluation of energy-efficient retrofitting interventions in UK social housing to improve indoor air quality and health
- Economic evaluation of interventions to adapt domestic environments in the UK to protect heat-vulnerable populations
Water, Sanitation & Hygiene in global health
- Benefit-cost analysis alongside a handwashing and sanitation trial in Malawi
- A programme of work on gender, sanitation, and quality of life, including intra-household disparities.
- Contributing to a new measure of hygiene experiences
- Exploration of preference-based disability weights for menstrual health outcomes
- The role of frequency of promotion visits in the effectiveness of handwashing and water treatment
- A review of methods for valuation of childhood undernutrition outcomes in economic evaluations
Selected Publications
