A foreign exchange firm employee is seen between the national flags of the U.S. and Japan at a dealing...
A foreign exchange firm employee is seen between the national flags of the U.S. and Japan at a dealing room in Tokyo, Japan, January 29, 2016. The Bank of Japan ramped up its aggressive stimulus campaign on Friday, adding negative interest rates on central banks deposits to its massive asset-buying program, stunning financial markets that expected no action or a moderate increase in asset purchases. REUTERS/Yuya Shino