- Efficiency assessment of Japanese railway business: JR and major private railways
- QUANTITATIVE ANALYSIS AND MODELING OF FIRMS’ STRATEGIC BEHAVIORS AND PERFORMANCES FROM TECHNOLOGICAL INNOVATION PERSPECTIVES USING PATENT DATA
- 民営化段階に着目した高速道路会社の経営に関する研究
- Evaluation Study of Japanese Railway Companies: Impact of COVID-19 and Business Model Perspective
- Digital innovation in the energy value chain: An analysis of prospects for distributed, renewable energy in Japan
- Assessment of oil and gas supply chain management and regional differences in efficiency: Application of data envelopment analysis