The yen climbed versus a majority of its 16 major peers after economy minister Akira Amari said further losses in the currency would negatively affect the people, and the government's job is to minimize that.
The yen retreated from near its weakest point in more than four years versus the dollar after Amari said Sunday there's speculation the currency's past strength has "been corrected a lot."
Wagers that the dollar will gain against the euro and yen rose last week amid bets the Federal Reserve will signal a tapering of bond purchases. New Zealand's dollar appreciated as its finance minister said home price gains will pressure the Reserve Bank to raise interest rates.