We investigate whether shared auditors promote the dissemination of innovative knowledge among their clients, thereby fostering follow‐on innovation. We find that a company cites more patents from another company when they are audited by the same audit office. To address concerns about potential confounding factors stemming from commonalities in the fundamentals of the two companies, we leverage a quasi‐exogenous shock to auditor sharing: the demise of Arthur Andersen and the subsequent increase in auditor switching in 2002. Further analysis reveals that the effect of a shared auditor on cross‐client patent citations is stronger when both clients engage in intensive innovation activities. Additional evidence suggests that shared auditors exert more influence on the citations of recent patents and patents that are easier for outsiders to utilize. Overall, our findings suggest that auditors affect corporate innovation by facilitating the transfer of innovative knowledge among their clients.

Using machine learning–based algorithms, we measure key impressions about sell‐side analysts using their LinkedIn photos. We find that impressions of analysts’ trustworthiness ( TRUST ) and dominance ( DOM ) are positively associated with forecast accuracy, especially after recent in‐person meetings between analysts and firm managers. High TRUST also enhances stock return sensitivity to forecast revisions, especially for stocks with high institutional ownership. In contrast, the impression of analysts’ attractiveness ( ATTRACT ) is only positively associated with accuracy for new analysts or when a firm has a new CEO or CFO. Furthermore, while high DOM helps male analysts’ chances of attaining All‐Star status, it reduces female analysts’ accuracy and the likelihood of winning the All‐Star award. In addition, the relation between TRUST and accuracy is modulated by the disclosure environment and is attenuated by Regulation Fair Disclosure. Our results suggest that face impressions influence analysts’ access to information and the perceived credibility of their reports.