Martin Knapp is Professor of Health and Social Care Policy at the London School of Economics and Political Science (LSE), based in the Health Policy Department. He is also a Professorial Research Fellow in the Care Policy and Evaluation Centre (CPEC; formerly PSSRU) at the LSE. 

In addition, since 2009, Martin has been Director of the School for Social Care Research, part of the National Institute for Health Research (NIHR) in England. His main research interests are in the areas of social care, child and adult mental health, dementia and autism. 

Much of his work uses economic arguments and evidence to inform policy discussion and influence practice development. His research has had wide-ranging impacts on policy and practice in a number of fields.