Samtidig er det vigtigt at huske på, at et velfungerende indre marked sandsynligvis kræver mere og tættere samarbejde, herunder med hensyn til spørgsmål om beskatning, end vi har i dag.
At the same time, it is important to remember that a well-functioning internal market probably requires more and closer cooperation, including with regard to matters of taxation, than we have today.