Undergraduate Research Journal


In this study, I examine several factors that are related to the social costs of rail transportation in Japan by using a constructed Japanese dataset and regression analysis. Unlike previous studies, the components of the social costs in this study focus on current environmental matters such as global warming and air pollution. Also, the regression analysis controls for population, revenue per passenger, passenger density, rail length, and gas emission. This study may help to improve technology and services, and minimize losses in the future of the rail industry.

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