The Organization for Economic Cooperation and Development said it expects a "strongly improved performance" in the U.S. economy and a slight improvement in the prospects for Japan and the 12 countries using the euro.

The agency said its leading indicator showed that the world economy overall was also poised for recovery.

The indicator for June rose 1.1 points to 122.1, the OECD reported, capping an impressive three-month gain from March. The U.S. component rose 1.7 points, while the euro-zone component rose 0.4 point

The OECD index's six-month rate of change, the agency's preferred measure for economic turning points, rose at an annualized 3.4 percent — the highest rate in a year.