Evaluating the impact of different spatial linkages on forum outcome interdependencies in polycentric systems

In complex polycentric systems, decisions regarding the governance of certain subsystems (e.g., watersheds) are often determined by networks of diverse actors who participate across a range of forums tackling interconnected collective actions issues (e.g., water quality, biodiversity, flood management). Compounding this structural complexity are the multifaceted interdependencies that exist between forums across a system. Drawing on the Ecology of Games Theory (EGT), this article investigates the impact of different types of network linkages on outcome interdependence between forums. Using a series of spatial autoregressive models on data collected in a Tampa Bay water governance system, I find evidence that co-membership and organizational networks serve as pathways for outcome spillovers between forums. Building theory that helps elucidate how different types of network relationships may influence outcomes across a system is critical for the continued development of EGT and the governance of polycentric systems.