Purpose: Improving audit quality is an important research area of managerial accounting. This study focuses on the informal institutions within organizations and their impact on audit quality. Specifically, this study aims to examine the impact of the informal hierarchy among directors on audit quality. Design/methodology/approach: The authors examine Chinese companies with listed shares from 2008 to 2020. The authors proxy for audit quality using discretionary accruals and small profits, and use ordinary least squares regression to test their hypotheses. Findings: The results demonstrate that the informal hierarchy of the board improves audit quality. The results are robust to a battery of sensitivity analyses. Additionally, there is weak evidence that the effect of the board’s informal hierarchy on audit quality is weaker in state-owned enterprises. Moreover, the mechanism tests indicate that the board’s informal hierarchy improves audit quality through the improvement of internal controls. In addition, the impact of the informal hierarchy among directors on audit quality further improves firm performance. However, audit fees are not reduced further because the board’s informal hierarchy demands higher audit quality by choosing industry audit experts. Originality/value: This study not only enriches the research on the economic consequences of the board’s informal hierarchy but also expands on studies on antecedents of audit quality.

Promoting social equity is a global issue, and common prosperity is an important goal for human society’s sustainable development. This study is the first to examine climate risks’ impacts on common prosperity from the perspective of corporate employees, providing micro-level evidence for the coordinated development of climate governance and social equity. Employing data from companies listed on the Shanghai and Shenzhen stock exchanges from 2016 to 2023, a fixed-effects model analysis was conducted, and the results showed the following: (1) Climate risks are positively associated with the common prosperity of corporate employees in a significant way, and this effect is mainly achieved through employee guarantees, rather than employee remuneration or employment. (2) Climate risk will increase corporate financing constraints, but it will also force companies to improve their ESG performance. (3) The mechanism tests show that climate risks indirectly promote improvements in employee rights and interests by forcing companies to improve the quality of internal controls and audits. (4) The results of the moderating effect analysis show that corporate size and performance have a positive moderating effect on the relationship between climate risk and the common prosperity of corporate employees. This finding may indicate the transmission path of “climate pressure—governance upgrade—social equity” and suggest that climate governance may be transformed into social value through institutional changes in enterprises. This study breaks through the limitations of traditional research on the financial perspective of the economic consequences of climate risks, incorporates employee welfare into the climate governance assessment framework for the first time, expands the micro research dimension of common prosperity, provides a new paradigm for cross-research on ESG and social equity, and offers recommendations and references for different stakeholders.