“…The measurement for outsourcing is based on collected information at the industry level and from input-output tables, rather than firm-level data (López, 2014). Due to data limitation, the existing literature have focused on outsourcing at the industry level and have found either positive impacts (Amiti & Wei, 2009; Lin & Ma, 2012, Austin-Egole & Iheriohanma, 2021) or negative effects (Winkler, 2010; Falk, 2012; Windrum, Reinstaller, & Bull, 2009). In explaining for why firms do outsourcing, the previous studies focused on the internal factors that might incur outsourcing decisions, which were analyzed differently through the agency cost theory, the resource dependency theory, and the transaction cost theory (Michael & Michael, 2011).…”