Spatial analysis of centralization and decentralization in the population migration network

ABSTRACT

Althouh overcrowded and the depopulation of the population are one of the social issues in Japan, the complex mechanisms are not comprehended. Then, we tried to show this phenomenon by catching as a network. We interpreted prefectures as nodes and migration as links. We observe power law distribution in both population and migration. We insist on the necessity of reconsider the prevailing assumption that cities size or influential potential follow normal distributions. We investigate what factor influence on the migration. We compare the population and distance between prefectures. As a result, we showed that the population of destination has strong influence in migration. We visualize the migration. We characterized quantitatively and showed the whole image of the migration. This analysis may be useful at various stages in decision-making and planning support of government and municipalities.

REFERENCES

• 1: F. Auerbach (1913): Das Gesets der Bevolkerungsknzentration. Petermann's Mitteilungen, 59:74-76
• 2: G. K. Zipf (1949): Human Behavior and the Principle of Least Effort. Addison-Wesley Press
• 3: K. Doo-Chul (1997): Economic Growth, Migration and Rural Depopulation in the Republic of Korea :Comparison with Japan's Experiences. Regional Development Studies, 3:239-259
• 4: N. Hayashi (1991): Space system and location of city. Daimeido:62-63
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• 6: MIAC: Ministry of Internal Affair of Communication, http://www.stat.go.jp/english/index.htm. Accessed 12 September 2005
• 7: RIMJ: Report on Internal Migration in Japan, http://www.stat.go.jp/english/data/idou/index.htm. Accessed 12 September 2005

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.6 SIMULATION AND MODELING
      I.6.5 Model Development

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)

  I. Computing Methodologies
  I.6 SIMULATION AND MODELING
      I.6.3 Applications
      I.6.8 Types of Simulation
          Subjects: Visual

General Terms:
Design

Keywords:
gravity model, scale-free, spatial structure