Lies, Damn Lies and OLS Weights Part III

And how you almost can't avoid extrapolating

Dall-e 3 depiction of OLS weighted average of the ATT and the ATU where weights are in the wrong direction and based on group size.

Boy has the last week been a joy ride. I was working through this 2022 Restat article, as I said, by Tymon Słoczyński from Brandeis and trying super hard to get a simulation going that I thought would illustrate something c…