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中国管理科学 ›› 2023, Vol. 31 ›› Issue (10): 175-186.doi: 10.16381/j.cnki.issn1003-207x.2020.2118

• • 上一篇    

三方动态博弈视角下的网络借贷行业声誉机制研究

侯鑫彧1,张帅2(),巴曙松2   

  1. 1.中山大学管理学院,广东 广州 510275
    2.北京大学汇丰商学院,广东 深圳 518055
  • 收稿日期:2020-11-12 修回日期:2021-05-22 出版日期:2023-10-15 发布日期:2023-11-03
  • 通讯作者: 张帅 E-mail:zs7683789@126.com
  • 基金资助:
    国家自然科学基金资助项目(72103009);中国博士后科学基金资助项目(2020M670004)

Research on the Reputation Mechanism of Peer-to-Peer Lending Industry from the Perspective of Tripartite Dynamic Game

Xin-yu HOU1,Shuai ZHANG2(),Shu-song BA2   

  1. 1.Business School, Sun Yat-sen University, Guangzhou 510275, China
    2.HSBC Business School, Peking University, Shenzhen 518055, China
  • Received:2020-11-12 Revised:2021-05-22 Online:2023-10-15 Published:2023-11-03
  • Contact: Shuai ZHANG E-mail:zs7683789@126.com

摘要:

通过声誉机制缓解信息不对称是网络借贷行业的核心问题。在经典的两方借贷模型中引入声誉机制,运用演化博弈理论,构造了包括P2P平台-商业银行-投资者的三方博弈模型,分析系统的演化稳定策略,以及声誉信号在三方动态演化博弈中的作用。研究表明,商业银行对P2P平台的认证有助于形成正反馈的声誉机制,而能否形成稳定的分离均衡的关键在于商业银行能否发挥严格的筛选效应。增加商业银行的声誉损失、增加商业银行对P2P平台的认证费用,均有助于提高商业银行选择“积极认证”行为策略的概率,并最终实现分离均衡。实证结果表明,获得商业银行存管能够改善P2P平台的生存状况,但受限于积极认证的商业银行比例较低、且多为中小型商业银行,抑制了商业银行的第三方认证作用,不利于声誉信号发挥筛选作用。本文为理解互联网金融领域的声誉机制作用提供了一个新的研究视角。

关键词: P2P平台, 三方博弈, 声誉效应, 动态演化博弈

Abstract:

The lack of an effective reputation mechanism for online lending platforms makes it difficult for investors to distinguish between high-risk and low-risk platforms in online lending effectively. In theory, the reputation mechanism can be fulfilled through signaling mechanisms, yet does the fund depository service provided by commercial banks help lending platforms to formulate an effective reputation mechanism? Can such a reputation mechanism alleviate information asymmetry and contribute to the development of the online lending industry? The research perspective is extended from the personal reputation of investors to the reputation of online lending platforms and a tripartite game model including platforms, commercial banks, and investors is constructed to understand the role of reputation signals in the dynamic evolution of the game among the three parties. The core findings include: according to the static equilibrium model, the certification of platforms by commercial banks helps to form a reputation mechanism with positive feedback, and increasing the proportion of actively certified banks helps to promote self-regulation of platforms, which ultimately increases investors' returns. The evolutionary game model indicates that the key to forming a stable separation equilibrium lies in the capability of banks to play a strict screening role. The dynamic reputation mechanism affirms that increasing banks' reputation costs or raising banks' certification fees for platforms helps to improve the probability of commercial banks choosing the “active certification” behavioral strategy to achieve the separation equilibrium. A series of regression results based on the survival model suggests that access to bank depository services improves the survival rate of platforms. However, limited by the low proportion of actively certified banks and the majority as small and medium-sized commercial banks, the third-party certification role of banks is directly inhibited, and the screening role of reputation signals is impeded, which offers a new research perspective to understand the role of reputation mechanism in Internet finance.

Key words: peer-to-peer lending platform, tripartite game model, reputation effect, dynamic evolutionary game

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