rossaokod comments on Marketing Effective Altruism: What can we expect from book sales?

[rossaokod]

This Economics paper find a significant positive effect of celebrity endorsements on book sales—just some more evidence that this works!

Garthwaite, Craig L. 2014. “Demand Spillovers, Combative Advertising, and Celebrity Endorsements.” American Economic Journal: Applied Economics, 6(2): 76-104