Wang.Will_Win 发表于 2017-1-15 16:18 
你好具体怎么操作，虚拟变量和解释变量变吗？
我正好也遇到了这个问题，估计这个可能会有点帮助：
Wooldridge Introductory Econometrics: A mordern approach, 3E.
大概在p249，Example 7.10
"In this example, there is a useful way to think about the multicollinearity:"
"More interesting would be to estimate the gender differential at, say, the average education level in the sample (about 12.5).To do this, we would replace female educ with female (educ 12.5) and rerun the regression; "
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