Well, the U.S., of course, is the world's largest economy. It's about a quarter of the world's output. It's also home to many of the largest financial institutions and financial markets. ↗
A lot of girls annoy me who go to university - one girl told me she was going to Oxford because it was something to do between leaving school and getting married. And I've got to pay for that being an income tax payer. ↗