Conservatives argue that in a world where everything is increasingly mobile, high tax rates run more risk of driving businesses and jobs overseas than they once did. They point out the central role of entrepreneurship in advancing economic growth and note that since most new ventures fail, the returns of success have to be very large if entrepreneurship is going to flourish. They take umbrage at the suggestion implicit in some political rhetoric on inequality that there is something wrong with success on a grand scale. And they worry that policy measures taken to directly combat inequality will have perverse side effects.