National and International Benefit Transfer Testing with a Rigorous Test Procedure

Benefit transfer, as a mean to transfer values from existing monetary valuation studies to new policy sites, has been in use for many years. This paper aims to analyze the forecasting quality of benefit transfer by applying a rigoroust-test – also referred to as Accuracy-t-test – that takes into account testing errors which were made in previous surveys. Beside the analysis of national benefit transfers based on two German contingent valuation studies additional efforts were made to investigate into the validity and accuracy of international benefit transfer by considering two Norwegian studies that employed a similar survey design.