TOKYO, Mar 24: Bank of Japan policymakers engaged in heated debate on the pros and cons of their decision in January to adopt negative interest rates, with one even saying it was preferable to roll it back, a summary of their opinions at the March 14-15 rate review showed on Thursday. “It’s preferable to roll back the negative rate policy. But abandoning it immediately after introducing it would cause market confusion and risk eroding trust in the BOJ. With the effects (of the policy) still not clear, we should maintain the policy,” one of the nine board members was quoted as saying. (AGENCIES)