Abstract
Japan has faced a lot of risks including deflation, recession and huge disasters. Therefore, it seems that infrastructure plays a big role in order to increase the national benefit by developing the national economy and managing these risks. However, Japan has reduced the governmental investment for a long time and Japanese people does not seem to understand precisely importance of developing infrastructure from the perspective of the national benefit. In this paper, the object is to get some base knowledge from the international comparison data regarding effectiveness of infrastructure. We performed empirical analysis about the relation of the level of infrastructure development and national performance indexes including economic growth. The results showed that in developed countries, the higher the level of the road and rail infrastructure development is, the higher the economic growth rate in the medium-term and long-term is. This indicates that development of the transportation infrastructure such as roads and railways would contribute increase of economic growth.
