SOX-related internal control disclosures provide a unique opportunity to test whether the internal control environment of suppliers affects the duration of customer-supplier relationships for several reasons. First, SOX disclosures provide a credible signal about the quality of a firm’s internal processes. Although the overall internal control environment is unlikely to be relationship-specific, a firm’s investment in internal control (as proxied by its ICW disclosures) can provide a means by which to reduce information asymmetry between a firm and its stakeholders (Gallemore and Labro [2015]), such as supply chain participants. As Kinney [2000] implies, customers and suppliers may view transaction conditions more favorably if they can be assured of the quality of information that is shared among supply chain members.