The infrastructure management of Japan has problems in both sides of supply and demand. In the demand side, the problems exist in the overseas relocation of industrial activities and also the decrease in population. In the supply side, on the other hand, the problem is the high renewal costs of the aging infrastructure. It is actualizing especially in the local area. The infrastructure management is required in a timely manner. The time management is an important viewpoint in that case. It is required to practice optimization of an infrastructure level in accordance with the demand, and it is important to disclose related the infrastructure information for that purpose.

ABSTRACT：Following the annexation of 3 former townships, the current local authority, Manno, has established the fundamentals for a concentration reform plan and administrative reform. A particular objective of the concentration reform plan is to reaffirm the core competencies of the local authority, while also proactively utilizing the private sector for all other services and projects. Pursuant to this strategy, Manno has procured comprehensive maintenance and inspection services for its public facilities. The local authority is also using the PFI method in its renovation project for the local junior high school-gymnasium-library complex.

In 2003, the tax system for clearing of the gifts tax paid to the gifts in the past when a child inherits his parent’s property introduced. Before introducing this system, the gifts tax was very heavy, comparing the inheritance tax. However, the gifts tax has become relative low by applying this system. In this paper, we examine the theoretical price of gifts and bequests, basing the tax system in Japan to gifts and bequests, such as tax rate, one’s basic deduction, clearing of the gifts tax paid to gifts, progressive taxation and so on, and we analyze the optimal allocation between gifts and bequests by parents in which the marginal price of gifts is equal to that of bequests.