Difference in differences - Wikipedia
By A Mystery Man Writer
![](https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Illustration_of_Difference_in_Differences.png/290px-Illustration_of_Difference_in_Differences.png)
![](https://diff.healthpolicydatascience.org/related/paths_files/figure-html/pg-1.png)
Difference-in-Differences
File:Finite Differences.svg - Wikipedia
File:Interferometer path differences.JPG - Wikipedia
![](https://upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Rotating_brain_colored.gif/220px-Rotating_brain_colored.gif)
Neuroscience of sex differences - Wikipedia
![](https://www.econlib.org/wp-content/uploads/2016/09/problem.jpg)
Susan Athey on Machine Learning, Big Data, and Causation - Econlib
![](https://upload.wikimedia.org/wikipedia/commons/8/89/Heart_block.png)
Atrioventricular block - Wikipedia
Difference in differences - Wikipedia
![](https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Finite_difference_method.svg/307px-Finite_difference_method.svg.png)
Finite difference - Wikipedia
![](https://upload.wikimedia.org/wikipedia/commons/6/61/Age_differences_for_spouses_%28USA%29.png)
File:Age differences for spouses (USA).png - Wikipedia
![](https://preview.redd.it/i-thought-i-should-get-my-eyes-checked-but-it-appears-that-v0-tl47o0io1yic1.png?auto=webp&s=4477bc7d8b9aa43ac48f2357aa32cb84d8132214)
I thought I should get my eyes checked. But it appears that is not
![](https://diff.healthpolicydatascience.org/img/potential_outcomes.png)
Difference-in-Differences