Abstract
This study presents a case analysis of radiko, an audio content distribution service affiliated with radio broadcasting companies in Japan. Through an in-depth case study of radiko, this paper aims to elucidate how coopetition among firms—ordinarily competitors in the traditional market—affects the process of co-operation to create a digital distribution platform. Specifically, it investigates the role of such relationships in the early attainment of critical mass. The paper contributes to a deeper understanding of the dynamics between competition and cooperation in the digital age.