BOJ to conduct bond operations in flexible manner; Volatility in bond market not affecting economy yet; Will adjust pace of bond operations as needed; Will adjust how bonds purchased as needed; Need to avoid excessive volatility in bond market; BOJ influence to lower risk premium to become clearer; Bond prices decided by economic outlook, risk premium; Real interest rates are probably falling; Possible bond market is still looking for equilibrium point; Carefully watching development of bond yields; Impact of weak yen has some time lag on exports; Better economic, price outlook may be affecting yields; Long-term ... (full story)