Aspects of Mexico's economic and technological structures are examined, features of the modernization process are dealt with, an analysis is made of one component of the Mexican migratory flow into the United States, and migratory flow, seen in the context of the system of "peripheral" and "central" economics, is discussed. (Author/EB)

This article analyzes the two perspectives, social control and labor scarcity. Immigrant workers are argued to be tied to social control functions in the peripheral sectors of the United States economy. The historical experience of farm workers in southwestern agriculture is drawn upon to illustrate the argument. (Author/EB)