Financing constraints are important to triggering controlling shareholders' share pledges. However, the related literature faces two major challenges: the endogeneity problem and the lack of direct evidence of why and how individual share pledges can ease corporate financing constraints. Based on China's Share Pledge Reform (SPR) in Q4 2012 and the phenomenon that private firms face discrimination when obtaining bank loans, this paper studies the impact of financing constraints on share pledging behavior and its mechanisms by building a difference-in-differences (DID) model. The SPR makes it more convenient for shareholders to raise money through share pledges, and shareholders of private firms facing stronger financing constraints are more vulnerable to this reform than are state-owned enterprises (SOEs). After the SPR, the probability of share pledging by controlling shareholders of private firms is approximately 23.04% higher than that of controlling shareholders of SOEs, and the pledge ratio is approximately 16.53% higher. Further tests reveal that, after the SPR, controlling shareholders of private firms are more inclined than those of SOEs to provide loans to the company to alleviate its financing constraints. Heterogeneity tests further corroborate the finding that this effect is more significant in private firms that are smaller and do not have shareholders of banking and institutional firms among their top ten shareholders.

Common ownership has raised growing antitrust concerns. We compile a comprehensive dataset of U.S. antitrust litigation cases from the Federal Trade Commission, the Department of Justice, and consumer-initiated lawsuits to shed light on these concerns. We find no robust relationship between common ownership of firm-pairs and the likelihood of these firms being jointly sued. Furthermore, common ownership is negatively associated with potential channels of collusion, such as interlocking directors and competitor-benchmarked executive pay. Evidence from institutional mergers and S&P 500 additions of rival firms supports our main conclusions. Overall, our results offer little support for the view that common ownership promotes explicit collusion.

This paper examines the impact of geographic proximity on suppliers' decisions to provide trade credit to their customers. To establish a causal relationship, we utilize the implementation of high-speed rail (HSR) services in China as a quasi-natural experiment. Our findings reveal a significant increase in trade credit received by firms after introducing HSR services. We propose and test three mechanisms to elucidate the influence of proximity on trade credit provision: the enhanced convenience for acquiring soft information, heightened competition among suppliers, and the potential development of social trust. Empirical evidence strongly supports the first two mechanisms, underscoring their importance in shaping trade credit decisions. However, limited evidence is found regarding the role of social trust. These findings contribute to understanding the complex interplay between geographic proximity, trade credit, and supplier decision-making processes.