Ray is an Official Fellow at Nuffield College, University of Oxford, and the Director of the Nuffield Centre for Experimental Social Sciences (CESS), which has collaboration partners in Chile, India and China. He received his BA (Honours) from the University of Manitoba in Canada and his MA and PhD from the University of Rochester.

Over the past 10 years, Ray’s research has focused on experimental approaches to social science and how these experimental methods can answer important policy-relevant questions – his recent experimental published works on experimental methodology (JEBO, APSR), policy responsibility attribution (AJPS), immigration (BJPS, POQ and SSQ), and cheating (PA) reflect this contribution to experimental social science. He is also a founder of the Nuffield College Centre for Experimental Social Sciences that he has directed for the past decade and where he has taught experimental methods to thousands of students. In 2015 Ray was invited to become an academic member of the Cross-Government Trial Advice Panel and in this role, he has provided support to numerous U.K. Government Departments in the design, implementation and analysis activities of random control trials. These RCTs are part of the U.K. Government’s effort to incorporate evidence-based assessments for policy implementations and proposals. In a very similar capacity Ray has worked with a variety of other government agencies either advising on design or providing civil servant training – included here UK DWP, UK Financial Conduct Authority, UK FSCS, Chile Ministry of Education, the Chile Audit Ministry, Contraloria, the Chile Pension Authority, and the Chile Police Department.

Mara Violato, BSc, MSc, PhD, is an Associate Professor at the Health Economics Research Centre, Nuffield Department of Population Health, in the University of Oxford.

Her research interests include: investigations of the socioeconomic determinants of (child) health inequalities; quality of life in children/young people and adults; applied health econometrics; the economics of gastrointestinal infections and coeliac disease; economic evaluations alongside Randomised Controlled Trials in various disease areas (e.g. child anxiety/mental health, ophthalmology); economic aspects of perinatal and paediatric care; and health care utilisation and costs. She is also involved in teaching and supervision of MSc and DPhil students.

Sonja Vogt is an associate professor in the Faculty of Business and Economics at the University of Lausanne. She uses lab and field experiments to examine the social and psychological mechanisms practitioners can use to tackle societal and environmental challenges related to public health, education, climate change, and land degradation. Much of her research is in collaboration with UN agencies and local NGOs in Sudan, Malawi, Kenya, Uganda, Tanzania, India, and Armenia.

Sonja is affiliated with Nuffield College and the Centre for Experimental Social Sciences at the University of Oxford, as well as the Centre for Development and Environment at the University of Bern.

Professor Philip Clarke is Director of the Health Economics Research Centre (HERC) at the University of Oxford. He is a Fellow of the Academy of the Social Sciences in Australia. His research interests include developing methods to value the benefits of improving access to health care including a Covid-19 vaccine, health inequalities and the use of simulation models in health economic evaluation.