Spatial computable general equilibrium modelling considering passenger and freight transport

Linear Chuo Shinkansen is expected to have economic effects on the three metropolitan areas of Japan. Thus, the gap between urban and rural areas is expected to expand. Spatial Computable General Equilibrium (SCGE) models describe the distribution of the effects of infrastructure development. We propose an empirical SCGE model that applies an aggregated logit model to subdivided areas where only value-added data are prepared without an input-output table. However, we develop these models only to improve freight transport. Therefore, this study aims to develop an SCGE model that considers passenger and freight transport and measure the economic impacts of highways and interregional high-speed railroads. We use the value-added from prefectural accounts and input-output tables available in each prefecture. The results show that the total benefit is almost identical to existing trial calculation results. The model proposed in this study makes it possible to calculate the effects of railroad projects, even in subdivided areas where input-output tables have not been prepared.