My current research interest is in the evaluation of health financing reforms, including mechanisms to increase health care coverage and financial protection among the informal sector and supply side incentives such as performance based financing. I am interested in the financial implications of these reforms for governments and the population, their equity effects and implementation processes.

My current research activities include an evaluation of the impact and cost-effectiveness of a pay for performance pilot in Tanzania, and of the provision of free health insurance cards to poor pregnant women, also in Tanzania. I am part of a research partnership which aims to support the implementation of reforms intended to achieve universal coverage in South Africa and Tanzania by monitoring and evaluating the policy processes (UNITAS). In Tanzania this includes the evaluation of reforms to strengthen primary health care, the introduction of voluntary insurance for urban informal sector groups and changes in health insurance scheme management.

I am also part of an international research partnership on social determinants of health (SDH-net) which aims to strengthen and link research capacities for health and its social determinants in African and Latin American low and middle income countries.
I am a member of the DFID-funded Consortium for research on Responsive and Resilient Health Systems (RESYST) which includes research on health financing, health workers and governance and leadership in the health sector. I am a Health Economics section editor for the journal Health Policy and Planning.