I’m reading the amazing “Mostly Harmless” and I’ve found what I believe to be a typo-though maybe is not and I’m just getting dumber- In Chapter 3, p.74, about the end of 2nd paragraph, it says “[…] regression of Yi on Di and Xi is the same as the regression of Yi on E[Yi|Di,Xi]” shouldn’t it say “the same as the regression of E[Yi|Di,Xi] on Di and Xi”?
Thank you very much for your patience and once again for a fantastic book,
Israel Arroyo
Mistake on page 74
Indeed it should! Thank you Israel