Employment Concentrations in Los Angeles, 1980–2000

Are contemporary metropolitan regions becoming more dispersed? There are theoretical arguments for both concentration and dispersal. The purpose of our research is to establish an empirical base that can help us to understand the evolution of metropolitan spatial structure. Using data for the Los Angeles region from 1980, 1990, and 2000, we identify employment centers and describe spatial trends in the pattern of employment inside and outside these centers. We find: (1) a remarkable degree of stability in the system of centers; (2) an increase in the average distance of jobs from the traditional core; (3) the emergence and growth of employment centers; (4) the rapid growth of dispersed employment in outer suburbs. These trends appear to defy simple models of urban evolution and call for a more nuanced portrayal of contemporary regions and the dynamics underlying spatial organization.

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