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"This paper uses an economic index to describe the hierarchical structure of the national settlement system and describes the changes among the sixties, eighties and nineties. We found great territorial changes for the first period. The conclusions proposed are that there is a decentralisation at [the] national level, but at the same time, there is a centralisation at [the] regional level." (SUMMARY IN ENG), (excerpt)

"Given the importance of information on the population age structure when planning short, medium and long-term needs within the different social strata, this paper is a proposal to deepen...the study of changes in the population pyramids.... Based on the most recent methodologies a study of age discontinuities is carried out and a method of follow-up by cohorts is suggested, taking the 15-19 and 20-24 age groups as an example. The purpose is to show that, as a...cohort ascends in the age pyramid, new and different necessities arise and also different responses are demanded on the part of the social system." Data are for Brazil as a whole and for the state of Sao Paulo. (SUMMARY IN ENG), (excerpt)

"The purpose of this paper is to assess urban research in Mexico during the 1980s.... The study is divided into three sections: 1) continuing themes; 2) new themes on urban issues; [and] 3) state policies regarding urban issues. The author notes that in the 1980s, research was conducted for the purpose of analyzing urban realities more explicitly.... She also offers a description of studies that attempt to link state policies, the actors involved, and their impact (or lack of it) on urbanization processes, and discusses the regulatory functions carried out by the state." (SUMMARY IN ENG), (excerpt)

Changes in the relationship between population factors and the development process in Mexico from 1940 to the present are reviewed. The authors show how the development that occurred up to about 1970 both absorbed and encouraged rapid population growth. They then describe how the emergence of problems concerning this relationship led to the development of a population policy during the 1970s. "The paper then takes up the implementation of that policy and the determinants of the fertility decline that took place afterwards, and closes with a brief review of the implications that demographic considerations have for Mexico's future." (SUMMARY IN ENG), (excerpt)

"This paper describes the historical evolution of five populations and analyzes the circumstances under which data on maternal and paternal orphanhood of couples at the moment of marriage were collected and compiled." The data, which concern historical populations in Mexico, Chile, Peru, Brazil, and Argentina, are used to construct life tables for male and female adults. Consideration is given to mortality differentials by sex. (summary in ENG), (excerpt)

The relationship between population distribution and development trends is analyzed, with attention to the planning of spatial redistribution policies. Some shortcomings in the investigation of the causes and consequences of urbanization are discussed. The second part of the article "refers to some spatial demographic and socio-economic expressions of the urbanization process in Latin America, the population concentration trends and their relationships with changes in agrarian structure and industrialization, social stratification patterns and forms of urban space organization.... The paper concludes with some critical notes on the theses related to 'optimum' size of urban centres and to 'balanced development' of urban systems, on which some policy proposals have been based." (summary in ENG), (excerpt)