For practical reasons, in order to carry out economic evaluations of collective decisions, total costs will generally be compared with total benefits; hence, individuals' willingness to pay (WTP) or quality-adjusted life-years (QALYs) have to be estimated at an aggregate level. So far,...

This article describes the components that should be included as indirect costs to be consistent with economic theory in studies conducted from a societal perspective. The recently proposed method of how to estimate indirect costs, the friction-cost approach, is shown to exclude many aspects of...

Background: Peptic ulcer bleeding (PUB) is a serious and sometimes fatal condition. The outcome of PUB strongly depends on the risk of rebleeding. A recent multinational placebo-controlled clinical trial (ClinicalTrials.gov identifier: NCT00251979) showed that high-dose intravenous (IV)...