Introduction : the transmogrification -- Do ideas even matter any more? -- How pessimists, partisans, and plutocrats have changed the marketplace of ideas -- The standard indictment against the academy -- Why economics thrives while political science survives -- This is not your father's think tank -- The booming private market for public ideas -- The promise and perils of intellectual superstardom -- Is the ideas industry self-regulating? -- Tweeting ideas, or, The requisite chapter on social media -- Conclusion : the dark knight theory of the ideas industry