Contingent valuation: has the debate begun?
Smith
Richard D
RD
Health Policy Unit, Department of Public Health and Policy, London School of Hygiene and Tropical Medicine, Keppel Street, London, UK. Richard.Smith@lshtm.ac.uk
Sach
Tracey H
TH
D032921:Consensus; D003362:Cost-Benefit Analysis / Q000639:trends*; D006301:Health Services Needs and Demand / Q000191:economics*