TOKYO -- The Japanese yen weakened well past the 143 level against the dollar Tuesday, reverting to a point not seen in about a month, following the Bank of Japan's decision last week to modify its ultraloose policy.
Japanese currency plunges 5 yen in two sessions due to limited yield rise

The wide interest rate gap between the U.S. and Japan is fueling a sell-off in the yen. (Photo by Nanami Sato)
TOKYO -- The Japanese yen weakened well past the 143 level against the dollar Tuesday, reverting to a point not seen in about a month, following the Bank of Japan's decision last week to modify its ultraloose policy.