Ronald Coase was an English economist who explained why harms are reciprocal in his oft-cited paper on “The Problem of Social Cost“, which forever changed my view of law, economics, and even morality. (Hat tip to my torts professor Guido Calabresi for introducing me to Coase’s work.) What is Coase’s theory of reciprocal harms and why is it important, you might ask? Read my 2023 Mercer Law Review paper “Coase’s Parable” to find out! (Hat tip for today’s tweet: the Amazing Tyler Cowen.)