PSM-DID

  • 详情 Can Short Selling Reduce Corporate Bond Financing Costs? —An Empirical Study of Chinese Listed Companies
    This research examines the impact of short selling on the financing cost of corporate bonds using panel data from Chinese A-share listed companies spanning the period from 2007 to 2022. The study aims to investigate the potential cross-market information spillover effects within the short selling system. The findings indicate that short selling significantly reduces the financing cost of corporate bonds, with a more pronounced effect observed under greater short selling forces. The robustness of the results is confirmed by controlling for various potential influencing factors and addressing the endogeneity issue through Propensity Score Matched Difference in Differences (PSM-DID) methodology. Moreover, the research reveals that the alleviation of information asymmetry serves as the primary mechanism through which short selling exerts its impact, particularly in regions with well-developed financial markets and favorable legal environments. This study offersa novel perspective of short selling in China and it sheds light on its cross-market spillover effects. By effectively enhancing resource allocation efficiency in capital markets, short selling emerges as a potent tool for mitigating information disparities between bond investors and enterprises.
  • 详情 Do the Expired Independent Directors Affect Corporate Social Responsibility? Evidence from China
    Why do firms appoint expired independent directors? How do expired independent directors affect corporate governance and thus impact investment decisions? By taking advantage of the sharp increase in expired independent directors’ re-employment in China caused by exogenous regulatory shocks, Rule No. 18 and Regulation 11, this paper adopts a PSM-DID design to test the impact of expired independent directors on CSR performance. We find that firms experience a significant decrease in CSR performance after re-hiring expired independent directors and the effect is stronger for CSR components mostly related to internal governance. The results of robustness tests show that the main results are robust to alternative measures of CSR performance, an extended sample period, alternative control groups, year-by-year PSM method, and a staggered DID model regarding Rule No. 18 as a staggered quasi-natural experiment. We address the endogeneity concern that chance drives our DID results by using exogenous regulatory shock, an instrumental variable (the index of regional guanxi culture), and placebo tests. We also find that the negative relation between the re-employment of expired independent directors and CSR performance is more significant for independent directors who have more relations with CEOs and raise less objection to managers’ decisions, and for firms that rely more on expired independent directors’ monitoring roles (e.g., a lower proportion of independent directors, CEO duality, high growth opportunities, and above-median FCF). The mediating-effect test shows that the re-employment of expired independent directors increases CEOs’ myopia and thus reduces CSR performance. In addition, we exclude the alternative explanation that the negative relation is caused by the protective effect brought by expired independent directors’ political backgrounds. Our study shows that managers may build reciprocal relationships with expired independent directors in the Chinese guanxi culture and gain personal interest.
  • 详情 Early IPO Registration System Reform and Financialization of Real-Sector Enterprises: A Quasi-Natural Experiment Based on the ChiNext Market
    The reform of the IPO registration system is a crucial step toward the maturity, improvement, and marketization of the securities market. In recent years, the trend of corporate financialization has become increasingly evident. Based on data from firms listed on the ChiNext Market and the Main Board, this paper constructs a Propensity Score Matching-Difference-in-Differences (PSM-DID) model and an RDD-DID model to examine the impact of IPO registration system reform on corporate financialization and analyze its underlying mechanisms from multiple perspectives. The estimation results of both models indicate that the IPO registration system reform has significantly increased firms’ financialization levels. Furthermore, a series of robustness checks confirm the reliability of the findings. The mechanism analysis reveals that the reform has promoted corporate financialization by lowering listing thresholds, alleviating financing constraints, and intensifying market competition. Meanwhile, its information disclosure mechanism has to some extent curbed financialization. Further heterogeneity analysis shows that the reform’s promoting effect is more pronounced in non-state-owned enterprises, firms with lower growth potential, and those with weaker corporate social responsibility (CSR) performance. This study enriches the literature on the policy impact of IPO registration system reform, provides a new perspective on how such reforms influence corporate financialization, and offers important implications for curbing excessive financialization in real-sector enterprises, deepening IPO registration system reform, and further improving capital markets.
  • 详情 Does Innovation Policy Drive Patent Bubbles?An Empirical Evaluation of the Intellectual Property Pilot Cities Policy In China
    As a vital documentation for assessments, rewards and punishments in terms of political promotions, the intellectual property pilot city policy (IPPC), an strategic incentive measure to enhance innovation capacities at the city and firm level, may play a prominent role in innovation fostering in China. Yet patent bubbles that focus more on quantity over quality have been thrown into doubt, as local cadres and firms shall pay more attention to the easier observable low-quality innovation performance amid the pressure of political task. this paper conducts an investigation that drew upon listed firm data from 270 prefecture-level cities and employs a PSM-DID design to evaluate the IPPC policy effectiveness on innovation quality and innovation quantity. The results are obvious: The policy have boosted the number of innovations, but has a limited effect on improving the quality of innovation. We further apply a hierarchical liner modeling approach to deal with the stratified cityand firm-level data and to verify the mechanism through which policy distortions may affect corporate innovation. There also gives evidence that the IPPC policy comes into effect mainly through financial subsidies, institutional supply and the intensity of IPR protection at the local scale. This report concludes by proposing further policy implementations for the future optimization of China’s innovation strategies.
  • 详情 Learning from Credit Default: Evidence from Chinese P2p Platform
    Utilizing a unique P2P dataset, this study employs the PSM-DID method to explore the learning effect brought about by default events on investors. The findings reveal that investors who experience their first default event demonstrate an improved ability to select a higher-quality project the next time. Notably, this positive effect is more pronounced when facing substantial defaults, as opposed to cases where overdue principal and interest are eventually settled. Investors' initial confidence in defaulted projects contributes to a greater enhancement of their investment skills. Furthermore, the beneficial impacts of defaulted events diminish as investors’ investment experience accumulates.
  • 详情 Minority Shareholder Activism and Corporate Dividend Policy: Evidence from China
    Minority shareholder activism (MSA) on online interactive platforms is a new form of corporate governance in China. This paper investigates whether and how dividend-related MSA affects corporate dividend policies. We find listed firms are more likely to pay dividends and raise payout ratios with MSA. Our baseline findings are robust to a variety of robustness checks. We establish a causal relationship between MSA and future dividend payouts, with both instrumental variable approach and PSM-DID approach, and we provide evidence to show the increasing effect of MSA can be explained by exit threat and voting attendance. Our focused MSA complements the formal voting rights of minority shareholders and overcomes the absence of institutional investor monitoring. Overall, our findings suggest that minority shareholders can effectively monitor management when they are empowered with voice in the age of information.
  • 详情 商业银行与科技公司合作发展金融科技:“如愿以偿”还是“事与愿违”?
    金融科技是增强银行业服务实体经济能力的重要引擎,但商业银行与科技公司合作发展金融科技的模式存在明显的委托代理问题。本文在手工收集并人工判别每家银行与科技公司合作情况的基础上,以 2011—2019 年间 334 家区域性银行的面板数据为样本,构建 PSM-DID 模型,实证考察了合作模式对商业银行的经济后果,给出了支持委托代理观点的证据:合作总体上会降低银行的资产收益率和提高不良贷款率,在经过一系列稳健性检验和处理内生性后,结果依然稳健。进一步,结合合作双方特征和业务与技术合作的对比分析,针对委托代理问题的机制检验结果表明:当作为代理方的科技公司能够自营贷款业务或同时与多家银行合作时,或者当委托银行的金融科技实力或话语权较弱时,委托代理问题及其负面影响更明显;代理问题主要存在于以联合贷为代表的业务合作中,而能够显著提升银行金融科技能力的技术合作对银行经营表现并无负面影响。本文不仅立足科技驱动金融创新的独特情境,拓展了金融中介委托代理问题的理论研究,还为科学评价商业银行选择不同模式发展金融科技的经济后果和为监管层密集出台相关政策的必要性提供了参考依据。