According to a popular view the author terms “two cheers for capitalism,” capitalism’s effect on development is ambiguous and mixed. This paper empirically investigates that view and finds that it’s wrong. Citizens in countries that became more capitalist over the last quarter century became wealthier, healthier, more educated, and politically freer. Citizens in countries that became significantly less capitalist over this period endured stagnating income, shortening life spans, smaller gains in education, and increasingly oppressive political regimes. The data unequivocally evidence capitalism’s superiority for development. Full-force cheerleading for capitalism is well deserved and three cheers are in order instead of two.