[A simulation model of Mexican internal migration flows: empirical application of a spatial interaction model]. / Un modelo de simulacion de los flujos de migracion interna de Mexico: aplicacion empirica de un modelo de interaccion espacial.

PIP: "In this paper spatial interaction theory is challenged in order to test if it is suitable to support the design and construction of an operative model of the Mexican internal migration flows. The main conceptual and operative aspects of the model are presented, the design and model building process is explained, the results of the calibration analysis are examined and a simulation exercise of migration policy evaluation is undertaken. The operative migration model presented in this paper seems useful to analyze and evaluate numerous migration policies, which suggest that spatial interaction theory offers a promising conceptual and operative foundation to analyze internal migration flows in Mexico." (EXCERPT)^ieng

[Spatial distribution of population in the metropolitan area of Mexico City, 1950-1990]. / Distribucion espacial de la poblacion en la Zona Metropolitana de la Ciudad de Mexico, 1950-1990.

"This study explores how the spatial distribution of population in the Metropolitan Area of Mexico City (MAMC) has changed between 1950 and 1990. First of all it presents the structural concepts of this research, and then analyzes the growth and spatial distribution of the MAMC population.... The results of this study indicate that MAMC: (i) continues to decrease in its central areas, (ii) presents a process of home location with expanding waves and moments of consolidation, (iii) has a many-centered metropolitan structure, and (iv) the dominating center separates progressively from the traditional center and is already located in the State of Mexico." (SUMMARY IN ENG)