世界经济 ›› 2019, Vol. 42 ›› Issue (7): 171-192.

• • 上一篇    

相安无事还是轮流坐庄:双寡头动态默契合谋的实验研究

汪敏达1, 李建标2, 曲亮3, 乜标3   

  1. 1. 东南大学经济管理学院 江苏省南京市东南大学九龙湖校区经管楼 211189;
    2. 山东大学经济学院、南开大学中国公司治理研究院 山东省济南市山大南路27号 250100;
    3. 浙江工商大学MBA学院 浙江省杭州市教工路149号 310018。
  • 出版日期:2019-07-10 发布日期:2019-07-25
  • 通讯作者: 李建标(通讯作者),电子信箱:biaojl@126.com E-mail:biaojl@126.com
  • 作者简介:汪敏达,电子信箱:wangminda2012@163.com;曲亮,电子信箱:quliang@163.com;乜标,电子信箱:nbb9119@163.com
  • 基金资助:
    国家自然科学基金青年项目(71602029)、国家自然科学基金面上项目(71673152)和中央高校基本科研业务费智库项目(2242019S3001)的资助。

Cooperation or Turn Taking: An Experimental Study on the Dynamic Tacit Collusion of Dual Oligopoly

Wang Minda1, Li Jianbiao2, Qu Liang3, Nie Biao3   

  • Online:2019-07-10 Published:2019-07-25

摘要: 在没有信息披露与沟通时垄断厂商之间也可能达成默契合谋,本文运用理论建模和实验经济学方法分析双寡头默契合谋的行为规律与发生动因。双寡头均选择退让的合谋称为"相安无事",轮流获得最大竞争优势的合谋称为"轮流坐庄"。模型分析和实验结果表明,相安无事的安全得益越低,轮流坐庄发生的频率越高,维持的时间越长,进入轮流坐庄合谋所需要的时间越少,中断后也更容易重新进入。进一步考虑寡头的行为决策动因发现,有经验的寡头更有可能进入轮流坐庄,强互惠使得谋求单边优势的寡头受到针锋相对的惩罚,从而促使双方选择合谋。惩罚成本上升并没有降低轮流坐庄的发生频率,反而提高了其稳定性。

关键词: 轮流坐庄, 相安无事, 默契合谋, 强互惠

Abstract: Tacit collusion between oligopolies can be achieved even in the absence of communication and dissemination of information. Using theoretical models and laboratory experiments, this paper analyses the nature of the market and the dynamic tacit collusion motivations of dual oligopolies. Tacit collusion can be categorised into two types:low power, which is cooperative, and high power, which involves turn taking. The results show that the safe gain of cooperation influences turn taking dynamics. The lower the safe gain is, the greater the frequency of the turn taking, the longer it will last, and the less time it will take to enter or retrieve the sequence. Further considerations of the oligopolistic decision-making motivations find that the most experienced oligopoly participates with a greater frequency at the start of the turn taking. Oligopoly with strong reciprocity punishes her opponent who tries to gain unilateral advantage. However, an increase in the cost of sanctions does not affect the likelihood of tacit collusion, but instead improves its stability.

Key words: turn taking, cooperation, tacit collusion, strong reciprocity

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