Patient centered outcome measurement in health economics: beyond EQ-5D and the Quality-Adjusted Life-Year—where are we now?

Decisions about choice of outcome measures outside of the economics context tend to focus on a two-way conflict between (I) the ideal form of measurement in any specific context and (II) what is practically feasible. But for measurement for economic purposes, there are two additional, related, conflicts: (III) what is required of the measure for it to be consistent with economic theory/the economic decision-making context, and (IV) what value judgements are acceptable within this theoretical approach.