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While considerable progress has been made in understanding the way particular aspects of internal migration, such as its intensity, age profile and spatial impact, vary between countries around the world, little attention to date has been given to establishing how these dimensions of migration interact in different national settings. We use recently developed measures of internal migration that are scale-independent to compare the overall intensity, age composition, spatial impact, and distance profile of internal migration in 19 Latin American countries. Comparisons reveal substantial cross-national variation but cluster analysis suggests the different dimensions of migration evolve systematically to form a broad sequence characterised by low intensities, young ages at migration, unbalanced flows and high friction of distance at lower levels of development, trending to high intensities, an older age profile of migration, more closely balanced flows and lower friction of distance at later stages of development. However, the transition is not linear and local contingencies, such as international migration and political control, often distort the migration-development nexus, leading to unique migration patterns in individual national contexts. [ABSTRACT FROM AUTHOR]

In 2011 the Australian Bureau of Statistics (ABS) introduced a radical new statistical geography for Australia. It then prepared a time series of Estimated Resident Populations (ERPs) by age and sex at the local scale (termed SA2 areas) back to 2001 on the new boundaries. However, a longer time series would be valuable to researchers. The aim of the work reported here was to extend the SA2 area ERPs back to 1986. A combination of small area census counts, official ERPs, look-up tables linking different statistical geographies, one-dimensional scaling, and iterative proportional fitting were employed to produce population estimates for SA2 areas of the new statistical geography. Population estimates for census years 1986, 1991 and 1996 by sex and 5 year age group were produced for SA2 areas. In combination with the official ABS ERPs for 2001, 2006 and 2011, these constitute a data set of spatially-consistent local area population estimates covering a 25 year period. The data are available in an Excel workbook accompanying this paper. [ABSTRACT FROM AUTHOR]