
If everyone thinks such flight from tax is bad, the proper mechanism to prevent it is to enact new law.
Pessimistically, I don't see that happening. It's unstable: there's too large a reward for being a defector nation. (Nation X decides to relax its bank taxes, and sees an influx of bank trade).
It's prisoners' dilemma / tragedy of the commons territory. To overcome that, it takes a really simple, powerful, personal mental image to get everyone to cooperate, and to effectively shun defectors. Perhaps one day.
( , Tue 22 Jun 2010, 14:46, Reply)

http://www.google.com/hostednews/ap/article/ALeqM5iHV4qy6CEXTPufLxX7emismvbp3QD9GGCV1O0 -- "Germany, France, UK commit to bank tax"
( , Tue 22 Jun 2010, 16:41, Reply)