نشریه دانش حسابرسی
سال سیزدهم شماره 1 (پیاپی 50، بهار 1392)

The purpose of this study is to investigate the effect of earning quality on the cost of equity of listed Companies in Tehran Stock Exchange (TSE) under comparative approach according to high earning and low earning quality of corporations.To achieve the goals of the research, the data of 50 Companies listed in Tehran Stock Exchange between 2002 and 2009 have been used. Moreover, in order To examine the relations among research variables, regression analysis has been applied, andthe effect of earning quality on the Cost of equity with dummy variable has been Tested.According to obtained result, as the earning quality of listed Companies in Tehran Stock Exchange increases, the Cost of equity decreases. This result shows that earning quality is a significant positive factor in the increase or decrease of the Cost of Companies quality.

The aim of this research is to investigate the effect of audit quality measures on investment risk in companies listed in Tehran Stock Exchange. Audit quality measures in this study are audit firm size, audit specialist and audit tenure. For this purpose three hypotheses were developed and data of 120 companies in Tehran Stock Exchange for the period between the years 138 to 1389 were used. To test the hypotheses, multiple regression techniques and panel data methods were used. The results showed that audit firm size and audit tenure are significantly positive and audit specialist significantly negative impact on investment risk in companies listed in Tehran Stock Exchange.

This study investigates the effect of political connections on accrual quality of firms listed in Tehran Stock Exchange. It also examines the relation between key accounting variables of politically connected firms and accrual quality. The methodology used in this research is correlation based on multiple regression. The results of the research for a 5-year data during the period between 2005-2009 show that political connections in sample companies have led to the decrease in accrual quality, and also the results of testing hypotheses reveal that the accrual quality proxy has positive correlation with audit size, profitability index and financial leverage. In contrast, it has poor correlation with the size of the politically connected firms which is not significantly statistical. Also, the findings of the study have not shown any significant evidence on the existence of significant relation among other variables such as auditor switching, management switching, and sale growth with accrual quality.

Risk-based internal auditing focuses on strategic analysis and avaluation of business process, risks and controls of an organization. By identifying, assessing, and monitoring a company’s risk, internal auditing helps assure that resources are adequate and focused on priorities. Generally, risk-based auditing assesses areas of heightened risk, and, more importantly, conducts continuous risk assessments. The purpose of this study is to analyze company-specific factors associated with adoption of risk-based auditing. It also seeks to examine the role of internal auditing in enterprise risk management (ERM).The final sample used for this study consists of 52 companies. Also, data were collected using a questionnaire. Results show that the number of firms applying risk-based approaches for planning the annual audit is greater in the finance industry than in non-finance industries. also, the number of firms applying risk-based approaches for planning each individual audit engagement is greater for firms in the finance industry than for firms not in the finance industry, and there is a significant association between the achive role of internal auditing in the implementation of ERM and membership of firms in the finance industry.

The purpose of this paper is to study the accrual’s capacity in the predictability of cash flows and the impact of bankruptcy risk on the capacity since decision-making and economic assessment of different groups of beneficiaries including buying and selling decisions made by users or evaluation the continuity of activities by auditors require the assessment of company’s power in creating cash flows. Furthermore, some researches bring up guesses about the impact of bankruptcy risk on the relationship between accruals and future cash flows. Using the financial information of listed companies in Tehran Stock Exchange, the present study nationalizes Chariot’s bankruptcy risk model. Then, with division of accruals into discretionary and non-discretionary, the paper investigates the relationship between accruals and future cash flows. Results show a significant positive association between abnormal accruals and future cash flows but as the probability of one-year-ahead bankruptcy risk increases, this association decreases.Originality/value: Although, previous researches have studied accrual’s capacity in the predictability of cash flows, this paper analyzes the influence of bankruptcy risk on the given relationship in addition to the segregation of accruals into discretionary and non-discretionary. So the evidence of this paper empirically open up a new horizon for the investors and auditors.

This paper seeks to examine the impact of Voluntary vs. Forced Financial Restatements on Earning Quality of restating firms. The sample in Our Study includes 62 companies that provided only once in the period 1380 to 1390have been restated. Our proxy for earning quality is change in Accrual Quality focus on Dechow and Dichev (2002) model. In this study, the internal corporate governance variables (board characteristics) and audit quality and firm characteristics as control variables have been used. We have investigated how these variables for the period of misstatement and post-restatement have affected the quality of earnings. Our findings show that the Forced financial restatements (due to the proposal of external auditor) is significantly positively related to the increase in accrual quality. Moreover, the study finds that the changes of accrual quality in firms with Forced Financial Restatements are significantly higher due to internal corporate governance change.

The main objective of this study is to investigate of the effect of agency costs and information asymmetry on audit quality of companies listed in Tehran Stock Exchange (TSE). In this research for calculating audit quality, The two Criteria of and it size and audit report type have been. Our sample includes 145 companies listed in Tehran Stock Exchange during the period between 2001-2010. We have used logistic regression analysis to test the research hypotheses. Our findings in this study indicate that if audit size is to Measure audit quality, three exists a significant negative relationship between agency costs and audit quality. Indeed, with increase in agency costs, the audit Quality OF Financial statements decreases. Also, there exists a significant negative relationship between information asymmetry and audit quality. In other words, with increase in information asymmetry, decreases audit. Quality decreases Our findings in this study indicate that when the criteria of audit report type is used to measure and is quality, there is on significant relationship between agency costs and audit quality. Also, unlike perditions, there is a positive and significant relation between audit quality and information asymmetry.