New study shows the Euro leading to uniform prices across countries | consumer psychology | Scoop.it
From phys.org - April 1, 2014 12:22 PM

"Economics has a 'law of one price,' which states that identical goods should, in theory, sell for identical prices—or else markets will even out the differences. Empirical work on the topic, however, has produced little evidence in support of this 'law,' and many studies showing deviations from it ..."