基于异质性公平偏好的行为博弈模型与模拟——对蜈蚣博弈实验结果的解释

针对蜈蚣博弈实验结果与传统博弈论预测的纳什均衡结果存在系统性偏离的现象,本文从行为博弈的角度,假设人是有限理性的,用人的公平偏好特征来解释这种系统性的偏离.通过运用Fehr和Schmidt(1999)模型来刻画博弈参与者的公平偏好,考虑不公平厌恶系数的异质性,构建行为博弈模型来模拟蜈蚣博弈的实验过程.模拟结果显示,本文建立的模型不仅能够解释蜈蚣博弈实验结果的所有定性特征,而且估计出了不公平厌恶系数的均值范围.根据极大似然准则,本文的模型有很好的拟合效果.

Behavioral Game Model and Simulating Based on Heterogeneous Fairness Preference: An Explanation to the Results of Centipede Game Experiments

There exist systematic deviations between outcomes observed in the centipede game experiments and Nash Equilibrium predicted by traditional game theory,which we think is caused by fairness preference.From the perspective of behavioral game theory,and by modeling fairness as inequity aversion with heterogeneous coefficient,we construct behavioral game model(BGM) based on fairness preference to explain the experimental results.It turns out that the BGM not only can explain all qualitative features,but also ca...