Brittney and Michael present the 3rd pioneer in their list of Pioneers in Difference-in-differences, the godfather himself, Dr. Orley Ashenfelter. Orley’s influence on the rise of design-based causal inference probably can’t be overstated, so it’s great to see them recognize his importance in helping bring diff-in-diff into the modern labor toolkit, and then through that field, all of the social sciences more generally. Getting Brittany and Michael’s own understanding of who Orley is was interesting and fun to see. A true legend. If you enjoy this, check out an older interview I did with Orley.
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