Japanese government bond prices gained on Tuesday, supported by wobbly Tokyo stocks and firm results in a 40-year debt auction, Reuters reported. The benchmark 10-year JGB yield was down one basis point at minus 0.015%, edging back towards a record low of minus 0.035% plumbed earlier this month. March 10-year futures gained 0.10 point to 151.71. JGB yields have declined steadily after the Bank of Japan adopted negative interest rates on Jan. 29. With yields now submerged below zero through the 10-year zone under the BOJ’s scheme, investors have made their way towards longer-maturity debt that present greater duration