Douglas S. Massey

TL;DR: In this paper, the authors argue that racial segregation is crucial to explaining the emergence of the urban underclass during the 1970s and that a strong interaction between rising rates of poverty and high levels of residential segregation explains where, why and in which groups the underclass arose.

TL;DR: In this article, the authors present a discussion of current theories that clarify basic assumptions and hypotheses of the various models of international migration, including macro theories of neoclassical economics, micro theories of macro-economic economics, new economics with examples for crop insurance markets futures markets unemployment insurance and capital markets, dual labor market theory and structural inflation motivational problems economic dualism and the demography of labor supply; and world systems theory and the impacts of land raw materials labor material links ideological links and global cities.

TL;DR: In this article, residential segregation is viewed as a multidimensional phenomenon varying along five distinct axes of measurement: evenness exposure concentration centralization and clustering, and 20 indices of segregation are surveyed and related conceptually to 1 of the five dimensions.

TL;DR: A detailed review of interconnections among individual behavior, household strategies, community structures, and national political economies indicates that inter-level and inter-temporal dependencies are inherent to the migration process and give it a strong internal momentum.

TL;DR: In this paper, the authors present and evaluate the leading contemporary theories proposed to explain the emergence and operation of these systems; evaluate the efficacy of various theories as they applied to trends and patterns in North America Western Europe the Persian Gulf Asia and the Pacific and South America and then synthesize the results of these reviews to produce an integrated theoretical vision capable of providing a coherent guide for future research and policy formation.