The possibility of treason by a close associate has been a nightmare of most dictators throughout history. Better informed viziers are also better able to discriminate among potential plotters, and this makes them more risky subordinates for the dictator. To avoid this, dictators, especially...

When voters fear that politicians may have a right-wing bias or that they may be influenced or corrupted by the rich elite, signals of true left-wing conviction are valuable. As a consequence, even a moderate politician seeking reelection chooses ‘populist’ policies – i.e., policies to the...