Abstract
ur study estimates compensating surplus for water quality improvement in two lakes ? Mácha (CZ) and Legowksie (PL). Surplus derived from WTP of residents for water quality improvement by one class amounts 18.7 USD (2005) in Mácha lake, or 7.4 USD in Legowskie lake respectively.
The paper reports research in benefit transfer validity between Norway and two New Member States of EU. Naive single benefit transfer yields the largest error rates.
Transfers adjusted by purchasing power decreases these errors, however, they remain still very large. The error rates are more reduced by transfer benefit function and particularly after adjustments by income elasticities.
Following our best transfer, the lowest error remains at 30%. Finally value transfer and function transfer are conducted and followed by validity tests.