Aggregation of logistic curves applied to the change in the level of urbanization.

Abstract

The concentration of population in urban areas in Japan and changes in the proportion of urban population to total population are quantitatively analyzed for the country as a whole and for regions within the country. Using official statistics for the years 1920-1980 to construct logistic curves the authors note similarities between the curves depicting nationwide changes and those describing regional changes. (summary in JPN) (ANNOTATION)