Via Johan Norberg: selon le Financial Times, il en coûterait chaque année pas moins de 600 milliards d'euros aux entreprises européennes pour financer l'adaptation à la législation de l'UE:

The bureaucratic costs to business of complying with European legislation could be up to €600bn a year - almost twice original estimates - the European Union's enterprise commissioner admitted on Monday.
Günter Verheugen also acknowledged that his drive to simplify EU laws was falling behind schedule, and again blamed officials inside the bloc's Brussels-based executive for obstructing his campaign to streamline or scrap legislation.
Some senior European Commission officials had not adapted to "a new political culture" and still believed their job was to unite Europe through more regulations, Mr Verheugen told the Financial Times.