ABSTRACT
We examine how formal and informal institutional logics interact to shape the effectiveness of Collaborative Environmental Governance (CEG). Using fuzzy-set Qualitative Comparative Analysis (fsQCA) of 34 CEG projects in Indonesia, we identify three distinct pathways to effectiveness: co-faith-based, multifaith-collaborative, and secular-market, each reflecting a unique configuration of authority, market, and social and community logics. Importantly, our findings challenge essentialist views of religion by reconceptualizing it as a context-dependent institutional logic that can enable or constrain collaboration depending on its institutional embeddedness. Religion represents a dynamic informal force, especially salient where formal institutions are underdeveloped or contested. These insights extend theories of institutional design and collaborative governance, particularly in culturally diverse and institutionally uneven settings. Our study offers practical implications for designing context-sensitive CEG systems, emphasizing the importance of inclusive leadership and institutional alignment.