During the past four decades, the field of development has been dominated by three schools of research. The 1950s saw the modernization school, the 1960s experienced the dependency school, the 1970s developed the new world-system school, and the 1980s is a convergence of all three schools. Alvin Y. So examines the dynamic nature of these schools of development--what each of them represents, their contributions, how they have criticized each other, how they have defended themselves, and how they were transformed. He reviews a variety of empirical studies, focusing on the "classical" and the "new" models, to show how each of the perspectives affects the study of development. In addition, this book features a unique emphasis on the research implications of the three perspectives, involving changes in orientation, agenda, methodology, and findings.