Just one generation ago, lawyers dominated Mexico's political elite, and Mexican economists were a relatively powerless group of mostly leftist nationalists. Today, in contrast, the country is famous, or perhaps infamous, for being run by American-trained neoclassical economists. In 1993, the Economist suggested that Mexico had the most economically literate government in the world--a trend that has continued since Mexico's transition to multi-party democracy. To the accompanying fanfare of U.S. politicians and foreign investors, these technocrats embarked on the ambitious program of...