This study assesses the economic impacts of the proposed EU-wide emission trade both on the European union as a whole and on Finland in particular. The study utilises the global GTAP-E- CGE-model to analyse Europe-wide impacts and a Finland-specific, hybrid, CGE-model to study the impacts on the Finnish economy. The main finding of the study is that at a European level, emission trade appears to be very beneficial. However, emission trade along the lines of the EU Emission trade directive would not necessarily lower the macroeconomic costs of green house gas abatement in Finland, since it might very well misallocate quotas among the trading sectors on the one hand, and between the trading sectors and the rest of the economy on the other. Abatement costs might be lowered within some of the trading sectors, however.