The most popular explanation of the yen's languor is a revival of the “carry trade” (ie, borrowing in cheap yen to buy higher-yielding investments elsewhere).

对日圆疲软的最常见的解释就是“利差交易”（即借入便宜的日圆然后在其他地方购入更高收益的投资品）的重新流行。

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To get the full explanation of why she quit, people may just have to buy her book.

FORBES: Magazine Article

The chairman of the Royal Bank of Scotland has challenged Santander's explanation for pulling out of a deal to buy 316 of its branches.

BBC: RBS queries Santander branch sale collapse