I am Professor of Health Economics in the Department of Global Health and Development and Co-Director of the Global Health Economics Centre. I have over 15 years of research experience working in low- and middle-income countries, applying an economics lens to the understanding of how health systems work and how they can perform better.

I first developed an interest in health economics while working at the Ministry of Health, Rwanda on a two-year placement with the Overseas Development Institute Fellowship Scheme. I did my doctorate at LSHTM, spending two years in Nepal carrying out research as part of a UK government-funded project evaluating a national maternal health financial incentive programme.

Much of my work involves the evaluation of policies that seek to increase patient demand for healthcare or improve the quality of care. I work on topics ranging from health financing and provider payment reforms to management practices and the private sector. My research has been published in medical journals as well as health and development economics journals.

I was recently a member of two commissions: the WHO-UNICEF-Lancet Commission "A future for the world's children?" and the Lancet Global Health Commission on financing primary health care: putting people at the centre.