Digital platforms have become central orchestrators of value creation in contemporary markets, yet their governance remains a fragmented but critical domain of inquiry. This narrative literature review synthesizes peer-reviewed studies published to examine how institutional structures, strategic coordination mechanisms, and ecosystem owner dynamics shape platform-based competition. Drawing from leading journals in management, information systems, and innovation, the analysis identifies five core research streams: governance architectures, coordination mechanisms, platform leadership and orchestration, power asymmetries, and regulatory-institutional challenges. Key findings reveal persistent tensions between openness for innovation and control for value capture, evolving governance practices that balance cocreation with cost management, and growing power imbalances between platform owners and complementors. The analysis culminates in a conceptual synthesis model that illustrates the interconnected flows of coordination, control, and value within ecosystems. This review demonstrates that effective governance is not merely technical but fundamentally institutional, influencing complementor participation, ecosystem stability, and market outcomes. By integrating disparate perspectives, this work highlights unresolved tensions in multi-sided markets and proposes directions for future scholarship on global platform regulation and adaptive governance in volatile digital environments. The synthesis offers practical guidance for managers and policymakers navigating the complexities of platform-dominated economies.