“…Drawing on the external audit literature (e.g., Balsam, Krishnan, & Yang, 2003; Krishnan, 2003), we identify the industry expertise of external IAF providers by a market‐share approach in which external IAF providers with a majority of IAF industry market share in terms of revenues in each industry and year are considered to have industry expertise. On the other hand, we measure firm‐specific expertise by the number of years an external IAF provider has continuously engaged with the same client, as the longer time of engagement is associated with firm‐specific experience (Contessotto, Knechel, & Moroney, 2019). Using a pooled sample of 928 observations from 2005 to 2017 for firms listed on the Omani capital market, we observe that external IAF providers with industry expertise are positively but insignificantly associated with REM, indicating that they do not contribute to the quality of outsourced IAF.…”