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α: calibrated so average coauthorship-adjusted count equals average raw count
The establishment of the European Monetary Union (EMU) was widely expected to cause price convergence among member states. In an investigation of this claim, the present study avoids problems of comparability and representativeness by using an extremely detailed and comprehensive scanner database on washing machine prices and sales volumes for 17 European countries. A hedonic regression yields country-specific time series for quality-adjusted price differentials. Statistically and economically significant deviations from the Law of One Price emerge. Logt tests firmly reject price convergence among EMU countries. Small convergence clusters can be identified but they are unrelated to EMU membership.