just as an aside, Luxembourg is not really an unregulated economy. it's very popular for fin companies because in addition to access to EU, the regulators (so I hear from my peers in legal) are very proactive speaking to companies to make it easier to set up there, and are quite prompt and more flexible than other countries in assisting companies on ambiguity in interpretation of regulations.

Of course it's not unregulated, and neither is the uk, it's just that the regulations are more relaxed compared to the rest of the eu.