Abstract
This paper considers a global game with ambiguity-averse players, where the variance of noise terms in private signals may be unknown, and it presents a laboratory experiment to test comparative statics results with respect to information quality. Suppose that one of the actions is a safe action yielding a constant payoff and it is a risk dominant action. Then, low quality of information makes less players choose the safe action, whereas ambiguous quality of information makes more players choose the safe action. The experimental results show that subjects' behavior is consistent with this comparative statics results.
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