Hiroki Sakai

Ten years after bus deregulation in Japan: An analysis of institutional changes and cost efficiency

Yoshinori Takahashi, Hiroki Sakai, Hiroki Sakai, 2013 .

Estimation of Social Costs of Transport in Japan

Fumitoshi Mizutani, F. Mizutani, Yusuke Suzuki, 2011 .

The effect of governmental subsidies and the contractual model on the publicly-owned bus sector in Japan

Kenichi Shoji, K. Shoji, Hiroki Sakai, 2010 .