Global Games with Strategic Substitutes

We study global games with strategic substitutes. Specifically, for a class of binary-action, (Formula presented.) -player games with strategic substitutes, we prove that under payoff asymmetry, as incomplete information vanishes, the global games approach selects a unique equilibrium. We characterize this equilibrium profile; players employ switching strategies at different cutoff signals, the order of which is directly determined by payoff asymmetry. We provide examples that illustrate our result and its connection with dominance solvability. We extend the global game literature, which has thus far been developed for games with strategic complementarities, to new applications in industrial organization, collective action problems, finance, etc. © (2020) by the Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association