Bolivia decentralized in an effort to deepen democracy, improve public services, and make government more accountable. Unlike many countries, Bolivia succeeded. Over the past generation, public investment shifted dramatically toward primary services and resource distribution became far more equitable, partly due to the creation of new local governments. Many municipalities responded to decentralization with transparent, accountable government, yet others suffered ineptitude, corruption, or both. Why? Jean-Paul Faguet combines broad econometric data with deep qualitative evidence to investigate the social underpinnings of governance. He shows how the interaction of civic groups and business interests determines the quality of local decision making. In order to understand decentralization, Faguet argues, we must understand governance from the ground up. Drawing on his findings, he offers an evaluation of the potential benefits of decentralization and recommendations for structuring successful reform.