企业内部效果(within effect) : WE =∑企业间(份额)效果(between effect) : BE =∑交叉(协方差)效果(covariance effect) : CE =∑进入效果(entry effect) : E...
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...ect),在我们的数 据里就是指不同地区之间的差异,另一种是同一组数据内部不同年份之间的差 异,称作组内效应(within effect),在我们的数据里就是指同一个地区不同 年份之间的差异。
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within-growth effect 内部增长效应
He says the changes went into effect on May twenty-ninth with the goal to process all requests within two weeks.
VOA: special.2009.06.11
That is because they have a cooling effect within buildings.
VOA: special.2010.03.02
The effect are greatest when given within forty-eight hours.
VOA: special.2009.08.05
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