About the Authors

Yoichi Sekizawa

Contributed equally to this work with: Yoichi Sekizawa, Yoko Konishi

Roles Conceptualization, Formal analysis, Methodology, Writing – original draft

sekizawa-yoichi@rieti.go.jp

Affiliation Research Institute of Economy, Trade and Industry, Tokyo, Japan

Yoko Konishi

Contributed equally to this work with: Yoichi Sekizawa, Yoko Konishi

Roles Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation Research Institute of Economy, Trade and Industry, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.