Abstract
Populations in most developed countries, including Japan, are expected to decrease rapidly, and the rate of elderly people is increasing simultaneously. These population dynamics will affect urban land structures. This paper shows how the dynamic trends in populations affect the urban structure, using a OLG model with two zones. The model has young and old generations in a closed city. This paper presents a description of how young and old generations reside in the two zones, and how such residential pattern changes according to the population dynamics. The dynamic paths of the welfare of young and old residents are discussed.