Market Reforms in Mexico is an impressive, original, and meticulously argued work that brings a fresh focus to bear on the by-now familiar question of how and why market-oriented reforms are successful. By juxtaposing Mexico's successful program of privatization and deregulation with its largely unsuccessful efforts in the area of environmental reform, Williams persuades us that the capacity to reform is at least as important as the motivation to do so. This rare look inside the state, and the struggles of reformers to forge coalitions, gain leverage over policy, and overcome the opposition of the losers fills in so much of what has been assumed about economic reform that it forces us to rethink many of the most fundamental precepts of our literature on political economy.