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,...