Former G20 chief says G20 was never going to collapse . In 2012 , critics predicted at least partial breakup of 17-member eurozone . Euro plunged to 25-month low against U.S. dollar in 2012 . eurozone exports become more expensive when sold overseas ; devaluation makes the bloc 's exports more competitive globally , which many eurozone officials would prefer . Currency war fears prevail in run-up to euro finance ministers meeting 2012 .
Former G20 chief says G20 was never going to collapse . In 2012 , critics predicted at least partial breakup of 17-member eurozone . Euro plunged to 25-month low against U.S. dollar in 2012 . Currency war fears prevail in run-up to euro finance ministers meeting 2012 .