一类供应链中考虑公平关切的学习效应行为实验研究

大量经济学实验研究证实了公平关切和学习效应对决策者行为的影响力。本文研究三人组供应链系统,通过区别设计个体自我学习以及社会学习的实验环境,对比考察备用供应商的公平关切程度,以及制造商和备用供应商学习曲线的特点。实验结果支持了学习效应存在的假设:随着实验期数的增加,单期决策时间逐渐减少,备用供应商的整体拒绝率逐渐降低,制造商的策略逐渐集中。进一步构建了引入公平关切的强化学习模型。通过参数估计发现在个体自我学习和社会学习实验环境下,备用供应商的横向公平关切程度均较为显著,信息共享对备用供应商的横向公平关切偏好无明显影响。

An Experimental Study of Fairness and Learning in a Triadic Supply Chain

Experimental studies of behavioral economics have provided convincing evidences that people are not perfectly rational but are affected by factors such as fairness concerns and learning. We conduct laboratory experiments based on a triadic supply chain to examine the horizontal fairness concerns of backup supplier and the learning curves of both manufacturer and backup supplier. Both individual learning and social learning settings are considered. The experiment results support the learning effect hypothesis in the supply chain: As the experiment proceeds, the decision time for a single period decreases; the overall rejection rate of backup supplier is gradually reduced; and the strategies of manufacturers are gradually concentrated. Furrhermore, we construct a reinforcement learning model with horizontal fairness concerns. Parameter estimation results show that the horizontal fairness concern of backup supplier is significant in both experiments with individual learning setting and social learning setting.