A century ago, migrants often crossed an ocean and never saw their
homelands again. Today, they call―or Skype―home the moment their
flight has landed, and that's just the beginning. Thanks to cheap
travel and easy communication, immigrants everywhere stay in
intimate contact with their native countries, creating powerful
cross-border networks. In Borderless Economics, Robert
Guest, The Economist's global business editor, travels
through dozens of... more...