The 20 Best Cities On The Planet ...according to the Cities in Motion Index (ICIM), of the IESE Business School in Spain. Read the article and see the graph in the Business Insider.
The success of many international cities, seems to have come at a cost. Shaila Dewan of the N.Y. Times explores the issue in "Rent Too High? Move to Singapore" (April 29, 2014). The same article also appeared in the Intl. edition of the N.Y. Times on May 3-4, 2014.