ドル円 為替介入

[London = Akira Yamashita, New York = Yoshikazu Imahori] At the New York foreign exchange market on the 30th, the yen rose sharply against the dollar, at one point reaching 157.80 yen to the dollar. Market participants have revealed that the government and the Bank of Japan have intervened in the foreign exchange market by buying yen and selling dollars, and that the U.S. monetary authorities have conducted a ``rate check'' as a prelude to intervention. This means that Japan and the United States are working together to curb the depreciation of the yen. After 9:30 a.m. Eastern time on the 30th (10:30 p.m. Japan time), the yen sharply plummeted.