Auditor specialization in R&D and clients’ R&D investment-q sensitivity

While research and development (R&D) activities contribute to economic growth via technological innovations, they impose significant uncertainty and agency costs. In this study, we examine the governance role of R&D specialist auditors in affecting clients’ R&D investment decisions. Using a sample of U.S. firms during 2001–2016, we find that R&D specialist auditors’ clients make more efficient investments in the form of a higher R&D investment-q sensitivity. We also find that the reduction in discretionary adjustments of R&D expenses moderates the results. Further, when clients are audited by R&D specialists, their R&D investments are more closely linked to innovative output in subsequent years. Collectively, our results suggest that an auditor's specialized knowledge induces clients to make better economic decisions.