“…Field data is needed to estimate effect sizes; measurement of effect sizes would enable rankings of which factors and best practices matter most. Second, we could enrich our model, sharpen our propositions, and expand the scope of our propositions by enfolding other ideas and refinements from game theory, and from the extensive literature on trust, cooperation, and voluntary contribution outside of game theory, such as commons governance (Ostrom, 1990(Ostrom, , 2009) and peer production of community-developed assets (Benkler, 2011;Muegge, 2011Muegge, , 2013. Third, we could expand our model into a more sophisticated treatment of project management governance and stakeholder relationships.…”