1) Thomas Piketty, “Capital in the Twenty-First Century” (Cambridge: Belknap Press). So let’s get the obvious one out of the way. I don’t think I agree with Piketty’s “r > g” argument, and I’m obviously intrigued by Daron Acemoglu and James Robinson’s recent riposte to Piketty’s structural argument. But that doesn’t really matter. The fact is that a 700+ page, translated-from-French tract on economic inequality was the #1 Amazon bestseller for at least a week. Piketty clearly tapped into something.