Brittany and Michael Present “Pioneers in Difference-in-Differences”, Part 2

In the second installment in the “5 Pioneers in Difference-in-differences”, Brittany and Michael from TikTok introduce us to the father of epidemiology himself, Dr John Snow. I first learned about John Snow from a great chapter in a great book on statistics by David Freedman. But I didn’t really see the diff in diff connection though until Thomas Colema…