"I am impressed with the author's careful delineation of the assumptions underlying various schools of thought and his careful design of empirical tests of these assumptions. He sheds light on a topic of great contemporary political debate—a topic where hot air is more common than fresh. If people want to debate market-based approaches to education seriously rather than just espouse a pet project because it happens to fit their ideological proclivities, they will have to deal with the issues and the evidence Smith brings forth." — Joseph Stewart Jr., coauthor of Public Policy: An Evolutionary Approach, Second Edition