可以用相同的工具变量分别“代替”那两个内生变量吗?
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楼主: peyzf
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当一个回归式中含有两个或两个以上的内生变量时,应该注意什么问题? |
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大师 59%
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回帖推荐当一个回归式中含有两个或两个以上的内生变量时, then you have an identification issue. In fact, x is an endogenous variable, you have a measure error for x. In this case you need additional equation to define how x is generated or intrumetal variable. Or you need method of instrumental variables. It is not simply “代替”.
Take a look you textbook, to fully understand instrumental variables a ...
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