2023 年 88 巻 809 号 p. 2169-2178
Differentiation by annual income level was analyzed from the following three aspects.
1. The annual income and its changes of each town was estimated over time.
2. Classification and its characteristics of each town was analyzed according to their changes over time.
3. Differentiation of residential areas according to income levels was analyzed according to the population structure and spatial characteristics of each classified area.