TOKYO :The Bank of Japan should not turn overly pessimistic about the economic outlook and stand ready to raise interest rates further depending on shifts in U.S. trade policy, one of its board members was quoted as saying at a April 30-May 1 policy meeting. "The BOJ will enter a temporary pause in rate hikes due to slowing U.S. growth. But it shouldn't be too pessimistic, and must conduct monetary policy in a nimble and flexible manner such as by resuming rate hikes in response to changes in U.