Population geography.
The author reviews recent changes in population research from a geographical perspective.  "The deaths in 1990 of two of France's most distinguished demographers, Alfred Sauvy (1899-1990) and Jean Bourgeois-Pichat (1912-90)...seem an appropriate starting point from which to review progress in population research in the early 1990s....Relative to the lifespans and works of Bourgeois-Pichat and Sauvy, it is possible to discern progress in population studies as a whole and population geography in particular.  Advances in technical aspects of measuring mortality, fertility and migration have been most marked, as have attempts to inter-relate these demographic processes. Progress towards explanation of population-related phenomena has been slower. Advances have not been towards building more sophisticated general theories, but towards new and more insightful forms of explanation." The author then summarizes other research literature on fertility, migration, and population subgroups.  The geographical scope is worldwide.
D003710:Demography; D004641:Emigration and Immigration; D005298:Fertility; D009026:Mortality; D011153:Population; D011157:Population Dynamics; D012106:Research
Demographic Factors; Fertility; Interdisciplinary Studies; Literature Review; Migration; Mortality; Population; Population Dynamics; Research Activities; Research Methodology; World