Masahiro (Masa) Kotosaka is an Associate Professor at Keio University and an Associate Fellow of EHESS. He is an expert in Strategy and Internationalization, and advisor to several global start-up companies. Before moving to Keio, he was a faculty at Ritsumeikan University, a junior faculty at University of Oxford, and was a consultant at McKinsey & Company (Frankfurt/Tokyo). As a practitioner, he worked for sixteen client organizations across nine industries and nine countries, and spent four years running three profitable IT/Retail businesses before joining McKinsey. He graduated from University of Oxford with D.Phil. (PhD) in Management Studies.