讲座题目:Data-Driven Hold-Up and Relational Contracts Joint work(数据驱动的掣肘问题与关系契约)
主讲人:陆卓然 上海交通大学安泰经济与管理学院
讲座时间:2025年12月10日14:00
讲座地点:学院210
讲座主题摘要:
This paper studies how relational contracts mitigate hold-up problems between platforms and online sellers when platforms use their data advantage to compete against sellers. In each period, the seller decides whether to sell on the platform and how much to invest in product innovation, which depreciates without continued investment from the seller. The platform then chooses whether to copy the seller’s product. If it does, the two parties compete; otherwise, they share the monopoly profit. We show that with rapid depreciation, the optimal relational contract is stationary and efficient when the discount factor is sufficiently high. By contrast, with slow depreciation, the platform always copies the seller under high discount factors, whereas cooperation can be sustained at intermediate levels. The efficiency of relational contracts depends critically on the seller’s outside option and the depreciation rate. The outside option has discontinuous and nonmonotonic effects on efficiency, implying that a higher outside option does not necessarily benefit sellers. Moreover, the depreciation rate can have opposing effects on efficiency, depending on whether the platform copies the seller when the relational contract is breached.
本文研究当平台利用其数据优势与线上卖家展开竞争时,关系契约如何缓解平台与卖家之间的掣肘问题(hold-up problems)。在每一期中,卖家决定是否在平台上销售,以及在产品创新上的投入水平;若卖家不持续投入,创新将发生折旧。随后,平台选择是否复制卖家的产品。如果平台复制,双方进入竞争;否则,他们共享垄断利润。我们证明,在折旧速度较快的情形下,当贴现因子足够高时,最优的关系契约是稳定且有效率的。相比之下,在折旧速度较慢的情况下,当贴现因子较高时,平台总是会复制卖家,而合作仅能在中等水平的贴现因子下被维持。关系契约的效率关键取决于卖家的外部选择和折旧率。外部选择对效率具有不连续且非单调的影响,这意味着更高的外部选择并不必然使卖家受益。此外,折旧率对效率可能产生相反方向的影响,这取决于在关系契约被违约时平台是否会复制卖家。
主讲人学术简介:
陆卓然,上海交通大学安泰经济与管理学院助理教授。本科毕业于清华大学经济学专业,后于美国加州大学洛杉矶分校获得经济学博士学位。研究领域属于微观经济理论,涵盖契约理论、信息经济学、组织经济学、网络经济学和数字经济等方向。目前的研究重点包括信号产品的最优定价、基于网络结构的团队监督设计、具有网络效应的智能互联产品的商业策略,以及数字经济中的关系型契约。研究成果发表于 Journal of Economic Theory、MIS Quarterly 等期刊。
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