Japanese stocks rose and the yen weakened after a report that Bank of Japan Deputy Gov. Masayoshi Amamiya had been sounded out as a possible successor to Gov. Haruhiko Kuroda. The Nikkei 225 stock index ended the day 0.7% higher. The yen weakened to as low as 132.375 per dollar, and later pared losses to trade 0.3% lower at 132.27 per dollar. Government officials pushed back at the report from the Nikkei newspaper. Whoever succeeds Mr. Kuroda, who stands down in April, has the difficult task of
