1. EconomicsThe Open University Milton Keynes UK
2. Department of Social Policy and InterventionUniversity of Oxford Oxford UK
3. Centre for Philosophy of Natural and Social ScienceLondon School of Economics London UK
4. Health Economics Research Centre, Nuffield Department of Population HealthUniversity of Oxford Oxford UK
5. Department of Economics and Related StudiesUniversity of York York UK
6. Institute of Health Policy, Management and EvaluationUniversity of Toronto Toronto Canada
7. Department of Economics, Mathematics and StatisticsBirkbeck, University of London London UK