Only 2 of the top 10 countries on this list are autocratic. In both Singapore and Hong Kong, most of the economic freedoms are for colonialists and not for the local Chinese. Hong Kong has some of the greatest economic disparity of any city in the world. Finally, both cities are open markets with cultural ties, special relationships, and proximity to the largest closed market on the planet, China. They are both port cities, essentially gateways to the hinterland. My point is I think autocracy has less to do it than this article would have you believe.