| 英文摘要 |
Platform initiators—such as municipal governments, public–private alliances, or lead firms—play a pivotal role in shaping the architecture, governance structure, and long-term sustainability of shared mobility systems. This study centers on the initiator’s role within shared bicycle platforms, reframing digital platforms as institutional infrastructures embedded in diverse urban policy environments. Drawing on platform theory, we conduct a comparative analysis of twelve global cities using a three-dimensional typology that integrates platform type, initiator–provider relationships, and strategic orientation. Our findings show that proprietary, hybrid, and shared models are not only technically distinct, but also reflect divergent modes of public-private collaboration, platform governance, and value creation. Furthermore, we propose a three-phase model of platform evolution—design, mobilization, and maturity—to explain how initiators influence system outcomes across different stages of development. By recentering the initiator as a strategic actor, this study extends existing platform theory and offers new insights for sustainable mobility planning. The results also inform policymakers and operators seeking to align platform strategy with urban constraints, stakeholder dynamics, and long-term public interest. |