"Only three US cities break into top 50 best economies across the world
Macau outperforms the rest of the world’s major cities economically, while the top 50 global cities included only three from the US: Austin, Houston and Raleigh."
"Twenty-seven of the 50 top-performing cities were Chinese."
http://www.theguardian.com/business/2015/jan/22/china-best-performing-economic-cities