...距模型,在横截面上的个体影响不同,个体的影响表现为模型中被忽略的反映个体差异的变量的影响,一般分为 固定效应 ( fix effect )和随机效应两种情况,当横截面的单位是总体所有单位时候,固定影响模型是一个合理的模型。
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It is not an unsolvable engineering problem. It is a small thermal mechanical effect in a prototype design that requires a simple engineering fix.
它不是一个解决不了的工程问题,而是原始设计中一个小的热力机械效应,需要做简单的工程修复。
"The cautionary tale from Japan is that keeping interest rates low without doing anything to fix structural problems may have little effect," says Mr Rajan.
“来自日本的警醒:保持低利率却不做任何事情来修理的结构性问题可能不会有什么影响,”Rajan先生说。
To use a form of hypnotism in which merely saying you intend to fix a problem has the effect of making everyone forget about the problem.
利用一种催眠术,只要说出你想解决某个问题,就能起到让所有人都忘记这个问题的效果。
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