Vanguard founder Jack Bogle says the U.S. is faring better than the rest of the world, and that China’s economy is “sinking quite a bit” right now. “The fact of the matter is our economy, U.S. GDP, is the best performer in the developed world by a good margin and the rest of the world has not made this kind of recovery,” Bogle tells Fox Business Network. “China is of course much more rapidly growing, but seems to be sinking quite a bit.” Bogle also talks about the need for regulatory clarity. “We have to get some clarity as to what the future holds in terms of the government’s role, taxes, capital gains, dividends,” he says. “I think it’s less that we get the right rules than that we get some rules.”