Tuesday, March 2, 2010
This short comment argues that both cost-benefit analysis (CBA) and cost-effectiveness analysis (CEA) should be seen as imperfect tools for evaluating health policy. This is true, not only for extra-welfarists, but even for welfarists, since both CBA and CEA can deviate from the use of social welfare functions (SWF). A simple model is provided to illustrate the divergence between CBA, CEA, and the SWF approach. With this insight in mind, the comment considers the appropriate role of contingent-valuation studies.