Model Migration Schedules

This report draws on the fundamental regularity exhibited by age profiles of migration all over the world to develop a system of hypothetical model schedules that can be used in multiregional population analyses carried out in countries that lack adequate migration data

Migration Age Patterns: Measurement and Analysis

This paper develops support for three principal points. First, the profiles of age-specific gross migration rates all over the world have a fundamental regularity that can be captured and expressed in mathematical form. Second, this mathematical "model" schedule summarizes the empirical regularity in a way that permits analytical examinations to be carried out regarding the fundamental properties of the migration age profiles. Finally, migration rate schedules may be conveniently decomposed to illuminate the influences on migration patterns of migration level, the age composition of migrants, and the age composition of the population in the region of origin

638 Model Migration Schedules: A Technical Appendix

This paper is a technical appendix to "Model Schedules in Multistate Demographic Analysis: The Case of Migration" and sets out the more than 600 model migration schedules that were fitted for the comparative analysis presented in that paper

Model Migration Schedules: A Simplified Formulation and an Alternative Parameter Estimation Method

This paper outlines a simplified model and a new numerical parameter estimation method that may enhance the application of model migration schedules in situations where access to large computers and packaged programs may be limited

Model Multiregional Life Tables and Stable Populations

This paper focuses on the construction of hypothetical "model" migration schedules and multiregional stable populations. It begins by identifying the persistent regularities that are exhibited by observed migration schedules and then summarizes these regularities by means of regression equations to establish a family of hypothetical migration schedules. These schedules are then combined with model fertility and mortality schedules to generate hypothetical stable populations which offer valuable insights into the dynamics of spatial population growth and change

Regional Migration Differentials in IIASA Nations

The evolution of human populations over time and space has been a central concern of many scholars in the Human Settlements and Services Area at IIASA during the past several years. From 1975 through 1978 some of this interest was manifested in the work of the Migration and Settlement Task, which was formally concluded in November 1978. Since then, attention has turned to disseminating the Task's results, to concluding its comparative study, and to exploring possible future activities that might apply the mathematical methodology to other research topics. This paper is part of the Task's dissemination effort. It is a draft of a chapter that is to appear in a volume entitled Migration and Settlement: A Comparative Study. Other selected publications summarizing the work of the Migration and Settlement Task are listed at the back

Migration Age Patterns: II. Cause-Specific Profiles

This paper seeks to illuminate the role played by various reasons for migration in accounting for observed-variations of age-specific migration rates. The focus is on the levels and age profiles of different cause-specific migration schedules and on their contribution to aggregate migration age curves that change over time and space

Model schedules in Multistate Demographic Analysis: The Case of Migration

This paper draws on the fundamental regularity exhibited by age profiles of migration all over the world to develop a system of hypothetical "synthetic" model miqration schedules that can be used to carry out multiregional population analyses in countries that lack adequate migration data

Status-Specific Age Patterns of Migration: Family Status

It is widely recognized that many internal migrations are undertaken by individuals whose moves are dependent on those of others. For example, children migrate with their parents and wives with their husbands. This paper suggests a matrix formulation of family migration that permits the introduction of such family dependencies into the population projection process