The Theory of Global Games on Test: Experimental Analysis of Coordination Games with Public and Private Information
通过实验检验全球博弈理论,发现公共与私人信息下行为差异小,私人信息时阈值更接近理论解,且比较静态预测成立。
The theory of global games has shown that coordination games with multiple equilibria may have a unique equilibrium if certain parameters of the payoff function are private information instead of common knowledge. We report the results of an experiment designed to test the predictions of this theory. Comparing sessions with common and private information, we observe only small differences in behavior. For common information, subjects coordinate on threshold strategies that deviate from the global game solution towards the payoff-dominant equilibrium. For private information, thresholds are closer to the global game solution than for common information. Variations in the payoff function affect behavior as predicted by comparative statics of the global game solution. Predictability of coordination points is about the same for both information conditions. Copyright The Econometric Society 2004.