Paola Subacchi The writer is Research Director of International Economics at Chatham House and Professor of Economics at the University of Bologna. THE NEW GLOBAL ECONOMY / American leadership in a multipolar world GIVING up the spotlight is never easy. The United States, like many aging celebrities, is struggling to share the stage with new faces, especially 13 April 2015, 18:00 PM 13 April 2015, 18:00 PM