Define The $\hat { \beta } _ { 1 } ^ { \text {diffs-in-diffs } }$

question 44

Essay

Define the $\hat { \beta } _ { 1 } ^ { \text {diffs-in-diffs } }$ in terms of observable differences in the treatment and control group, before and after the treatment. Explain why this presentation is the equivalent of calculating the coefficient in a regression framework.

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Definitions:

Affidavit

A textually recorded claim, authenticated by swearing or affirming, to be employed as evidence within judicial contexts.

Prayer For Relief

A formal request made to a court by a party in a lawsuit, seeking a specific type of assistance, compensation, or remedy.

Complaint

A formal legal document initiating a lawsuit, detailing the plaintiff's claims against the defendant and the desired relief or remedy.

Diversity Of Citizenship

A basis for federal court jurisdiction when the plaintiff and defendant are citizens of different U.S. states or when a foreign entity or individual is part of the lawsuit.