
100 Bayesian Methods in Health Economics
0 10000 20000 30000 40000 50000
0 50000 150000 250000 350000
Expected Value of Information
Willingness to pay
EVPI
FIGURE 3.7
PSA by means of the analysis of the expected value of information. For each
value of the willingness-to-pay parameter k, the EVPI represents the average
opportunity loss deriving by using the current most cost-effective intervention,
instead of further investigating to reduce the uncertainty in the parameters.
Higher values for the EVPI indicate that, for a given budget that the decision-
maker is willing to invest, the value of additional research is large.
ters), this implies that uncertaint ...