请教连老师：一个identification problem

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

Density and measures of  productivity may be simultaneously determined. This could happen because more productive places tend to attract more workers and as a result become denser. An alternative explanation, albeit equivalent from an econometric perspective, is that there may be a missing local variable that is correlated with both density and productivity. We refer to this issue as the “endogenous quantity of  labor” problem.

请问一下：红颜色的是什么意思？

非常感谢您！

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏0 回帖

关键词：problem Identi cation ATION CATI tend equivalent quantity measures

简单而言，就是模型设定存在遗漏变量偏误，这个遗漏变量与文中提及的两个变量的都相关。
麻烦的是，遗漏变量会跑到干扰项中，致使干扰项与文中提及的两个变量都相关，从而导致内生性问题。

谢谢连老师。