测量协调博弈中的策略不确定性

Measuring Strategic Uncertainty in Coordination Games

Review of Economic Studies · 2008
被引 241
人大 A+FT50ABS 4*

中文导读

提出一种测量策略不确定性的方法,通过实验研究协调博弈中参与者的行为,发现全局博弈模型能很好地描述观察到的行为,并估计了模型参数。

Abstract

This paper proposes a method to measure strategic uncertainty by eliciting certainty equivalents analogous to measuring risk attitudes in lotteries. We apply this method by conducting experiments on a class of one-shot coordination games with strategic complementarities and choices between simple lotteries and sure payoff alternatives, both framed in a similar way. Despite the multiplicity of equilibria in the coordination games, aggregate behaviour is fairly predictable. The pure or mixed Nash equilibria cannot describe subjects' behaviour. We present two global games with private information about monetary payoffs and about risk aversion. While previous literature treats the parameters of a global game as given, we estimate them and show that both models describe observed behaviour well. The global-game selection for vanishing noise of private signals offers a good recommendation for actual players, given the observed distribution of actions. We also deduce subjective beliefs and compare them with objective probabilities.

战略不确定性协调博弈全局博弈信念推断