An anonymous reader writes "There is a very interesting article about Cities Without Borders in the latest issue of Mindjack. The author, Paul Hartzog, argues that we are seeing the emergency of 'global cities' concentrating command-and-control functions for the global economy. For instance, the increasing importance of certain cities such as New York, London, Tokyo, Frankfurt, Sydney or Miami shows they not only support complex webs of businesses but also participate in a global network for the production and distribution of finance and capital. This is just one example. You should read the original article to see if you agree with the author -- or not."