We hypothesize that the choice to obtain a financial statement audit provides external financiers with incremental information about the firm, which helps reduce information asymmetry and financing frictions. Using a natural experiment, we show that when external financiers observe a firm׳s choice to voluntarily obtain an audit, the firms obtaining an audit significantly increase their debt, investment, and operating performance, and become more responsive to their investment opportunities. Further, we find that these effects are stronger for firms that are financially constrained and weaker for firms with other means to reduce financing frictions. Overall, our evidence suggests that the audit choice conveys information to capital providers, which reduces financing frictions and improves performance.

We examine merger and acquisition (M&A) transactions in which the acquirer and the target share a common auditor. We predict that a common auditor can help merging firms reduce uncertainty throughout the acquisition process, which allows managers to more efficiently allocate their capital, resulting in higher quality M&As. Consistent with our prediction, we find that deals with common auditors have higher acquisition announcement returns than do non-common-auditor deals. Further, we find that the common-auditor effect is more pronounced for deals with greater pre-acquisition uncertainty and deals involving acquirers and targets that are audited by the same local office of the common auditor. We also find that there is an increased probability of an M&A for firms with a common auditor. Collectively, our evidence suggests that common auditors act as information intermediaries for merging firms, resulting in higher quality acquisitions.