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Gryffindors are brave, Ravenclaws smart, Slytherins evil, and Hufflepuffs miscellaneous. This much we know from the Harry Potter books. What we don’t know is the makeup of each House in terms of its demographics. Which House is for the rich? Which house …

This week I read Harris and Findlay’s 2014 article in the Journal of Conflict Resolution: “Is Ethnicity Identifiable? Lessons from an Experiment in South Africa.” They ran an experiment among Xhosas in the Eastern Cape, having them guess the ethnicity of actors in a series of …

I know what you’re thinking–“you’re just throwing away your vote!” I disagree. To help me explain why, I’m going to rely on the classic “Calculus of Voting” equation (see this Wikipedia article for an explanation, although I am using the John Aldrich …