Sihui, Tang. The Role of internal control on the impact of common institutional ownership on stock price crash risk : evidence from China's A-Share market. Master's Degree(). Chiang Mai University. Library. : Chiang Mai University, 2025.
The Role of internal control on the impact of common institutional ownership on stock price crash risk : evidence from China's A-Share market
Abstract:
Stock price crash risk (CR) poses a significant threat to Chinas A-share market stability. This market-marked by weak investor protection, dynamic institutional adjustments, and a high retail investor ratio-makes identifying effective risk governance mechanisms crucial. This study samples Chinese A-share non-financial listed companies (20132022) and, drawing on Agency Theory, Information Asymmetry Theory, and Institutional Complementarity Theory, explores the intrinsic relationships among Common Institutional Ownership (CIO), Internal Control Quality (IC), and CR. Through literature integration and theoretical analysis, key findings emerge: CIO is significantly negatively correlated with A-share firms CR, inhibiting CR via cross-institutional information sharing and collective supervision ; IC positively moderates the CIO-CR negative correlation, with a more prominent effect in high-IC firms (reflecting interval heterogeneity in ICs amplification of CIOs risk inhibition) ; additionally, CIOs Granger causal inhibition on CR is context-dependent-only post-2019 (after The New Securities Law implementation, improved institutional environment) and in high-IC firms does CIO act as a significant Granger cause of CR inhibition, while this causal link is insignificant pre-2019 (underdeveloped institutions) or in low-IC firms. To verify these relationships, the study employs System GMM to build a dynamic panel model (addressing endogeneity), applies Panel Threshold Regression to identify IC-driven structural breakpoints and clarify ICs moderation boundaries, and uses Panel Error Correction Model to capture variables long-term equilibrium and short-term dynamics. Empirical results fully validate these hypotheses-confirming CIOs direct CR inhibition, ICs moderating effect with interval heterogeneity, and CIOs contextual causal dependence-with robustness tests affirming core conclusions reliability. Theoretically, this study enriches the "internal-external governance synergy for stock price stability" framework and clarifies ICs moderating mechanism/contextual boundaries on CIOs risk inhibition. Practically, it offers references for regulators to design differentiated governance policies and listed firms to optimize internal-external governance matching, aiding CR reduction and market stability in Chinas A-share market.