The main purpose of this study is to investigate the relation between CEO tenure and financial expertise and audit fees. Using samples of firms (129 firms) in the Tehran Stock Exchange, the results show that, from 2008 to 2015 there’s a positive significant relationship between CEO tenure and audit fees. That is, longer CEO tenure is associated with higher audit fees. Also, we find a negative association between CEO’s financial expertise and audit fees. This finding shows that those firms the CEOs of which have financial expertise pay lower audit fees, compared to the other firms. In addition, the results of the research extra analysis shows that the simultaneous effects of financial expertise and CEO tenure have a significant negative on audit fee. This result indicates that CEO’s financial expertise is one of the important factors for the auditors in evaluating the audit risk

The present study is about an investigation of the impact of financial expertise of audit committee on the information environment of the companies. Although there are several methods for the measuring of IE in the accounting and finance literature. However in this research by considering different results, presented in a comprehensive index using mathematical method measure IE. With this aim, the impact of financial expertise of audit committee on the IE during 2012-2015 after the approval of guideline, about 121 companies by the panel data analysis show, there is positive relationship among financial expertise and IE. Our findings show this characteristic is important in the company. The financial expertise is character which affects on the effectiveness of audit committee and finally improves the information environment of companies.

The purpose of this research is to examine the effect of audit committee financial expertise on the relationship between internal control weakness and audit fees. The statistical population of this research includes all firms listed in Tehran Stock Exchange during the period of 2013 to 2018. For this purpose, 163 companies in the Tehran Stock Exchange were selected. To test the hypotheses, regression method was used and data were analyzed using Eviews software.The results show that there is no relationship between internal control weakness and audit fees, but the financial expertise of audit committee members has a moderating effect on the relationship between internal control weakness and audit fees.Financial expertise of audit committee members has a moderating effect on the relationship between internal control weakness and audit fees. Given the effect of audit committee financial expertise on the relationship between internal control weaknesses and audit fees, it is important to consider the effectiveness of audit committees.

The purpose of this study is to examine the relationship between financial expertise and the experience of the audit committee chairman with auditor selection, audit fees and audit quality. In order to achieve the goal of the research, a sample equal to 99 companies admitted to the Tehran Stock Exchange during the period from 2015 to 2023, equivalent to 792 company-years, was analyzed using multiple regression analysis based on combined data. The findings showed that the companies whose heads of the audit committee have financial expertise are more likely to choose the audit organization and audit institutions with quality control A as their independent auditors. Also, according to the findings, the financial expertise of audit committee heads leads to an increase in audit fees and audit quality. However, this study did not identify a significant relationship between the audit committee chairman's experience with auditor selection and audit fees, but a positive and significant relationship between the audit committee chairman's experience on audit quality was identified. The findings of this study contribute to the literature by documenting that financial expertise and experience of audit committee heads are important for improving the audit process and audit quality.

The existence of transparent and quality information is one of the main needs of investors. Audi committee as a corporate governance mechanism increases the quality and transparency of the financial information. The purpose of this study is to investigate the relationship between the characteristics of the audit committee and corporate risk disclosure. The risk disclosure index has been calculated using the manual content analysis method. Also, for the audit committee characteristics, the variables of the degree of independence, the degree of financial expertise, and the size of the audit committee have been used. The research sample includes 68 companies for the period 2013 to 2019. The results indicate that among the characteristics of the audit committee, only the size of the audit committee had a significant and direct relationship with the level of risk disclosure. This result is consistent with the resource dependence theory. In addition, among the characteristics of the board of directors, the board financial expertise had a significant relationship with risk disclosure. These mean with increasing the financial expertise of the board of directors, risk disclosure has increased.

Audit Committee is a key element of corporate governance. The knowledge and understanding of experienced Audit Committee members increase the Company's financial reporting and auditing value. The objective of this study is to investigate the impact of audit committee financial expertise on managerial short-termism in Tehran Stock Exchange listed companies. To measure managerial short-termism, we used three criteria: discretionary accruals and the actual items (through manipulation of sales and a reduction in discretionary spending). Tehran stock exchange listed firms constitute statistical population of the research. The sample consists of companies that had been listed on Tehran Stock Exchange before 2012 and have audit committee in the years 2013 to 2016. Financial expertise of audit committee members had no significant effect on earnings management on the basis of accruals. The investigation of the effect of audit committee financial expertise on real earnings management revealed that audit committee financial expertise has a negative effect on the real earnings management through manipulation the sales and reducing discretionary spending. These findings are useful for policy makers to formulate useful obligations regarding the Charter of the Audit Committee and the necessity of applying the principles of corporate governance and preparing voluntary corporate governance report.

The aim of this study is integrating the incompatible and contradictory conclusions of the past empirical studies made on the impacts of Audit Committee on Earnings Management in developing and developed countries as well as the main evidence of the contradictions existing in above-mentioned studies. For more precisely collecting the incompatible conclusions of numerous completed studies, meta-analysis technique and Garcia-Meca and Sanchez-Ballesta research plan have been used. The technique was applied to a sample consisting of 30 independent studies made in during 2000-2019. The results of examining the relation of the characteristics of the Audit Committee and the Earnings Management indicate that while in developing countries the independence and financial expertise characteristics are negatively related to Earnings Management, and the size and number of the meetings of the Audit Committee is not significantly related to Earnings Management; in developed countries, the independence and the size of the Audit Committee characteristics are negatively and significantly related to Earnings Management, and the financial expertise and number of the meetings of the Audit Committee have no significantly related to Earnings Management. Examining the relation of financial expertise and Earnings Management suggests that the studies are heterogeneous. For finding out the factors of this heterogeneity, the criteria and indices of Earnings Management were grouped based on the quality of financial reporting, total accruals, Jones Models, and other models used in the studies made in respect of developed countries and calculation of intragroup chi-square statistics. We found out that financial expertise and Earnings Management.

This paper is aimed to review the effects of financial professional expertise of the audit In this study, we investigated the effect of audit committee members’ financial expertise on the relationship between the environmental risks of the company (including financial risk, operational risk and business risk) and the audit fee of the company. Thus, after explaining the theoretical foundations and implementation of hypotheses of the research, we selected 101 companies listed on the Tehran Stock Exchange TSE) through screening for a period of 7 years (2012-2018). We extracted required data, and then examined the classical assumptions of linear regression. Finally, we tested the implemented hypotheses by using multivariate linear regression. Findings showed that audit committee members’ financial expertise has a negative and significant relationship with audit fee and environmental risks of the company however; such a relationship does not weaken the severity of the direct relationship between environmental risks and the audit fee of the company.

This study seeks to examine the impact of the financial expertise of audit committee members on the relationship between business strategy and corporate tax avoidance. To assess the type of companies' applied strategy (aggressive or defensive), the Ittner and Larcker (1997) scoring system was used. For this purpose, effective tax rate (ETR) and book tax differences (BTD) were used for assessing tax avoidance and the ratio of financial experts to the number of audit committee members was used to calculate the financial expertise of audit committee members. The sample consists of 154 companies listed in Tehran Stock Exchange during 2015 - 2019. Collected data were analyzed using panel data multivariate regression model. The results showed that audit committee financial experts play only advisory role (tax avoidance promote) for defensive companies. Moreover, results indicate that accounting experts do like role of audit committee financial experts and they don’t play their supervision role in the tax planning for aggressive companies.

Non-financial data may refer to variables that represent the dimensions of the company's management. Company size and industry are other non-financial dimensions used when assessing business risk. In this regard, the purpose of this study is to explain the effect of micro and macro factors (specific characteristics of the company, industry characteristics, corporate governance, ownership structure and macroeconomic variables) on business risk in listed companies on the Tehran Stock Exchange. In order to achieve this purpose, 1752 firm-year (146 companies for 12 years) observations collected from the annual financial reports of listed companies on the Tehran Stock Exchange during the period 2007 to 2018 have been tested.Findings show that firm size, firm liquidity, firm profitability, firm growth opportunity, firm size, number of firms in industry, board independence, existence of audit committee and management ownership have a negative effect on business risk. while debt ratio and the exchange rate have a positive and significant effect on business risk. The results also show that statistically, firm life, industry decentralization, board size, duality of CEO duties, board financial expertise, audit committee size, audit committee independence, audit committee financial expertise, ownership type, Institutional shareholder ownership, major shareholder ownership, government ownership, interest rates and oil price growth have no effect on business risk.