Artículo
Prólogo Cómo cambiar historias""
Armando Chacon andPablo Pena have written a valuable book on a topic of great importance. Monetaryreturns to college and university education have been high during the past 30years in virtually all countries. Higher education pays off not only withbetter earnings and better jobs, but also in better health, greater likelihoodof being politically active, and in many other ways. In developing countrieslike Mexico, educated persons are especially valuable in helping companies touse efficiently the capital and technologies imported from richer nations.Despite these highreturns to a college education, many students with sufficient cognitive skillsto benefit from higher education quit school after finishing high school. Many other able students even drop out of high school before graduating. This waste oftalent is especially significant in Mexico and most other developing economies.