An Empirical Model to Analyse the Economic Influences of Cities in Yangtze River Delta <論説>

In this paper, based on a kind of gravity-type model imposed on the situation of city group, with which the different importance of various cities and the converted distance between pairs of cities involving traffic conditions are considered, a model to describe the economic influences of cities is proposed. This model can be used to explain some variation in regional development, such as the divergent and convergent phenomena. Also, this model shows the importance of transport means in economic relationship among cities. As an application, some impact analyses for the development of Yangtze River Delta are simulated.