The difference between the maximum utility computed for the current parameter configuration \(U^*\) and the utility of the intervention which is associated with the maximum utility overall.
Details
The value of obtaining additional information on the parameter \(\theta\) to reduce the uncertainty in the decisional process. It is defined as:
$$\textrm{VI}(\theta) := U^*(\theta) - \mathcal{U}^*$$
with \(U^*(\theta)\) the maximum utility value for the given simulation among all comparators and \(\mathcal{U}^*(\theta)\) the expected utility gained by the adoption of the cost-effective intervention.