Why do tax havens exist? Because rich countries allow them to. If the U.S. came down on tax havens in the same way they come down on countries that trade with Iran and Cuba, we'd have no tax havens in the world.
Other quotes by Ha-Joon Chang
People tend to think that numbers are quite objective, but numbers in economics are not like this. Some economists say they're like sausages: you don't know what they really are until you cut into them.