但理论并不总能成为现实；尽管日本银行引入负利率几乎立刻如预期那样降低了利率结构，但这一政策对日元和股市的影响并不令人愉快。
But theory does not always translate into practice; while the BOJ’s introduction of negative rates almost immediately pushed the interest-rate structure lower, as expected, the policy’s effects on the yen and the stock market have been an unpleasant surprise.