The Relationship between Internal Audit Features and the Effectiveness of Internal Controls over Operations and Compliance with Laws and Regulations for listed firms in TSE

Appropriate internal audit features can ensure the quality of the company by helping the management of companies to improve the establishment of the internal control system. In this regard, the establishment of a useful internal control system based on the effectiveness and efficiency of operations, Reliability of reporting and compliance with applicable rules and regulations, it can help the management to achieve organizational goals. The purpose of this study is to investigate the relationship between the characteristics of internal audit with the effectiveness of internal control over operations and compliance with laws and regulations in companies listed in Tehran Stock Exchange. With selecting 128 firms for the period between 2012 and 2019, and rinning the Logistic regressions, the results show a significant and negative relationship between the characteristics of the internal auditor and the weaknesses of internal control in cases of defects in operations and compliance (noncompliance with rules and regulations). It also indicates a significant and direct (positive) relationship with the effectiveness of the internal control system in companies listed on the stock exchange.