The bank of Japan could have used the money to intervene in the currency market by selling yen in an effort to drive down the price, but the bank is, with good reason, afraid this won't work.

日本银行本可以用这笔钱进入货币市场进行干预，去卖出日元来拉低币值，可是该行出于充分的理由，认为这样做没有用。

youdao

“It would be good if the yen would weaken a little more,” said Mr Kan.

“如果日元小幅走软，将是一件好事，”菅直人表示。

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The yen has slipped back a bit but not enough to make good on losses.

虽然日圆随后小幅回落，不过这并不足以弥补亏损。

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Some manufacturing companies still look good, especially if the yen stays at 120 or weakens a bit.

CNN: MONEY & INVESTING

For those who want to profit from a weaker yen, now is a good time to invest in currency options.

FORBES: Sell yen, buy dollars

As many exporters have already adjusted to the strong yen, and are now making good profits, depreciation could translate into sharply higher stock prices.

FORBES: Is Smart Money Betting on a Weaker Yen?