在资产端长期债券平均息票率低迷的情况下，收益率曲线的上升将至少会暂时导致日本银行的损失 （ “ 负铸币税 ” ） 。
Given the low average coupon rate of asset-side long-term bonds, the upward shift of the yield curve will result in a loss for the BOJ (“negative seigniorage”), at least temporarily.