Stephen Palmer is a Professor at the Centre for Health Economics (CHE), University of York. CHE was one of the world’s first research institutes dedicated to the study of the economics of health and health care and has established a leading international reputation. Stephen has over 25 years’ experience of health economic evaluation, regulatory and reimbursement processes. He has published over 175 peer-reviewed publications. His principal areas of expertise relate to the methodology and application of decision-analytic modelling and Bayesian approaches to Health Technology Assessment. He has worked closely with policy makers throughout his career and led a programme of work at CHE supporting the National Institute for Health and Clinical Excellence (NICE) between 2005 and 2019. He was also a member of the NICE Technology Appraisal Committee for 10 years and is currently a member of the NICE Decision Support Unit.