Estimate of Amount of Administrative Investment Necessary for Maintaining and Updating Infrastructure of Japanese Prefectures

This Paper conducts on a simulation to estimate the administrative investment necessary for maintaining and updating the infrastructure of present-day Japanese Prefectures. The field of the analyzed infrastructure is four fields (the road, water service, drainage, and the trash disposal facility). In this text, amount of an administrative investment necessary to estimate the administrative investment done in the past, and to maintain the infrastructure stock of the current state by the simulation in addition was estimated. It has been understood that maintenance and update of the infrastructure are the pressing issues as a result of these. Especially, maintenance and update of the infrastructure in the metropolitan area and a further provision of social capital in the local area will become a problem in the future.