I read that Cameron and most representants of British economy and Tory establishment have a strong interest in a closer cooperation in Europe (conditions of course to be negotiated), but some of their backbenchers have pledged to the contrary for the "populist" vote.

According to many commentators, a worlwide (moderate) tax on financial transactions would have a welcome calming effect on the markets, on top of the welcome revenue. It seems not to come true though, since those who refuse to cooperate hope for additional profit. A dangerous game of poker; the next crisis is approaching.

In my personal view it is a mistake to think too much in terms of countries when analysing politics. Think in terms of political parties and alliances, think about the global players in economy. "Patriotic" (populist) speeches are for the stupid masses.