The leaders of the four biggest eurozone economies agreed Friday on a plan to boost economic growth in the troubled currency union, CNN reported. At a meeting in Rome, the leaders of Germany, France, Italy and Spain discussed their priorities for a key summit of European Union leaders next week. Without going into detail, the leaders said they agreed on a set of growth-enhancing policies equal to about €125 billion, or 1% of eurozone gross domestic product. "We are preparing a plan for economic integration on a long-term basis in Europe," said Italian Prime Minister Mario Monti at a press conference following the meeting. Monti was flanked by German Chancellor Angela Merkel, French president Francois Hollande and Spanish prime minister Mariano Rajoy.