Does common auditor have an impact on corporate tax avoidance? An investigation from the supply chain perspective

We find that, at both the audit firm and partner level, having a common auditor in the supply chain has a significant positive association with the supplier company's degree of tax avoidance. Companies report a higher level of tax avoidance when they are audited by an industry-expert or a tax expert common auditor, when the common audit partner is economically dependent on the supplier company, when the audit client is in a highly competitive industry, and when the company is subject to a high level of information asymmetry. Moreover, we find potential audit quality issues embedded in common audits in the supply chain.