Professor Karl Claxton, born 1 March 1967, is a health economist at the University of York. He has a PhD in Economics, a MSc in Health Economics and a BA in Economics from the University of York. He was a Harkness Fellow at the Harvard T.H. Chan School of Public Health and from 1999 until 2007 he held an adjunct appointment there as an Assistant Professor of Health and Decision Sciences. He has been a member of the National Institute for Health and Care Excellence Appraisal Committee since 1999. He is co-editor of the Journal of Health Economics.