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BulletTech/Main_Course/Data_Analytics/2021-06-24-DID/ #6

Open utterances-bot opened 2 years ago

utterances-bot commented 2 years ago

双重差分小介 - BulletTech

We are a team of a few data scientists working in the financial industry. Here is the place where we share practical analytics skills, working and life experience. Enjoy your time here!

https://bullettech.github.io/BulletTech/Main_Course/Data_Analytics/2021-06-24-DID/

amoyyean commented 2 years ago

请问严外生性中的最后1个世子中的Xs是什么含义，ε(伊普西龙)我的理解是扰动项。什么原理能推到最后1个联立等式的左侧的等式成立？

amoyyean commented 2 years ago

最后1个联立等式中的Xs

jhqian0909 commented 2 years ago

请见

did