8. Discussion and conclusion
This study provides strong evidence that a firm’s characteristics, namely, size, level of internal risks, agency problem between owners and managers and existence of an effective audit committee, are associated with the existence of an IAF in the UK companies listed on the LSE Main Market. It found a strong positive and significant association between firm size and the existence of an IAF. Large companies are more likely to demand monitoring to compensate for the loss of direct control and for the information asymmetry problem between the owners/board and the executive managers.
The study also found a positive and significant association between the existence of an IAF and all the proxies related to the level of internal risks (RECINV, OCF and RISKC). Companies with higher levels of internal risks are more likely to have material misstatements in their financial reports and are therefore more likely to use an IAF to insure that internal controls are in place to monitor financial and non-financial risks. In addition, the significant association between the existence of a risk management committee and the existence of an IAF may provide evidence that the need to have a strong risk management system is one of the key factors that lead companies to have an IAF, endorsing the importance of the IAF’s role in monitoring and improving the systems of internal control and risk management.