光華講壇——社會名流與企業家論壇第6578期
主題:Regulatory punishment in an oligopolistic market: Evidence from credit rating agencies寡頭市場中的監管處罰:來自信用評級機構的證據
主講人:麥考瑞大學 周青副教授
主持人:中國西部經濟研究院 周凡副教授
時間:9月22日 10:30-12:00
舉辦地點:柳林校區頤德樓H412
主辦單位:中國西部經濟研究院 科研處
主講人簡介:
Clara Qing Zhou,麥考瑞大學商學院應用金融系,副教授,博士生導師。主要研究方向為corporate finance, climate finance和digital finance。多篇文章發表在Journal of Corporate Finance, Journal of Banking and Finance, Journal of Empirical Finance等。工作論文獲得AFAANZ Best Paper 2023,國際ESG論壇2023 Best Paper Award,和亞洲金融年會2021 Best Paper Award等。
內容簡介:
Regulatory punishment in the oligopolistic credit rating market is a delicate government intervention due to its potential high social cost. We exploit a unique feature of the Chinese bond market with a government-backed rating agency and explore a regulatory punishment on Dagong Global Credit Rating Co. Ltd. The intention behind this punishment is to improve the internal control and rating quality of credit rating agencies (CRAs). We show that the punishment has a short-term deterring effect on Dagong but worsens the quality of its ratings post-punishment. Less competitive rating agencies lower their ratings' quality, while highly reputable ones become more conservative. We highlight the potential unintended consequences on markets' competitive dynamics that regulators should consider when regulating oligopolistic markets.
在寡頭式信用評級市場中的監管懲罰是一種因其潛在的高社會成本而需謹慎的政府干預。我們利用中國債券市場的一個獨特特點,即有政府支持的評級機構,并探討了對大公國際信用評級有限公司(Dagong Global Credit Rating Co. Ltd.)的監管懲罰。這一懲罰的目的是改善信用評級機構(CRAs)的內部控制和評級質量。我們表明,這種懲罰對大公國際信用評級在短期內有威懾效應,但在懲罰后會使其評級質量惡化。較不競爭的評級機構降低了其評級質量,而聲譽較高的評級機構變得更加保守。我們強調了監管機構在監管寡頭式市場時應考慮的市場競爭動態的潛在意外后果。