فصلنامه دانش حسابداری مالی
سال سوم شماره 4 (پیاپی 11، زمستان 1395)

The purpose of this study is to investigate the effect of selected criteria on the relationship between managerial overconfidence on the accuracy of earning prediction. The accuracy of earning prediction is measured by through the change percent in the difference earning forecast error and managerial overconfidence is measured by capital expenditures ratio criterion to total assets. The 108 companies are selected by systematic elimination method from the companies listed in Tehran stock Exchange during the years of 2008 to 2016. In order to hypotheses testing used pool data regression model. The results show that managerial overconfidence has significant and negative impact on the accuracy of earning prediction. Also, optimistic earnings forecasts of last year and managerial discretion have negative and significant impact on the relationship between managerial overconfidence and the accuracy of earning prediction. but time horizons has positive and significant impact on the relationship between managerial overconfidence and the accuracy of earning prediction.

Asymmetric relation between performance and bonus is one of the most important topics in accounting and finance in recent years. Asymmetric relation produced by costs behavior and has attracted considerable attention. The characterization of effective parameter and their moderating effects on this relation is of vital importance. In the present work the moderating effect of expected future sale and capacity utilization on the relation between costs behavior and the changes in the bonus of directors in Food, Drug, Chemical, Metals and Car industries which listed in TSE were investigated. In order to, 58 companies has been investigated during 1387-1391, by panel data analysis method. Our findings showed only the capacity utilization had effect on this relation. The changes of bonus was more sensitive to increase in the return on assets than decrease it. The return on assets was produced by normal and non-normal costs behavior. Our findings showed in the absent of bonus committee as a corporate governance, the companies couldnt properly interpreted the relation between sale and costs and their moderator effects on the time of director's bonus payment.

Nowadays, In addition to provided financial information, different groups of users are demanders of extra non-financial information; these groups of users are more favor about various kinds of information about work force and issues related to environment. In spite of having cost for corporations in order to disclosure and performing issues related to social responsibility, they find some benefits. This research has been done with purpose of assessing the relation between changes in the level of social and environmental issues disclosure and profitability indexes. This study has been done by using quasi-experimental method and extracted data from financial statements for the years 2001 to 2014. To analyze data multiple regression model, panel data and fixed effect method were used. In this research to assess social and environmental issues disclosure KLD index. The results have showed that there is a significant relation among social and environmental responsibility disclosure and aspects of corporate financial performance, the ratio of operating income to sell ratio and the rate of return on used capital and rate of return on net wealth used.

The relationship between future earnings and current stock returns is called as future earnings response coefficient that indicates reflection of future earnings information in current stock price. The more information of firms be available to investors, their future earnings forecast will be more accurate. As a result, reflection of more future earnings information in current stock price, cause an increase in the relationship between future earnings and current stock returns. The aim of this study is to investigate the effect of product market competition on the future earnings response coefficient and also the moderator effect of institutional ownership on their relationship. To measure the future earnings response coefficient and the product market competition level, Collins et al (1994) adjusted model by Lundholm and Myers (2002) and Herfindahl-Hirschman Index is used, respectively. In order to achieve to the research goal, A total of 100 firms, including firms listed in Tehran Stock Exchange during the years from 2005 to 2015 were screened in the community. To test the hypotheses, a multivariate regression model with panel data is used. According to the results, the impact of product market competition on future earnings response coefficient, is significantly positive. Also, the effect of institutional ownership on the relationship between product market competition and future earnings response coefficient is significantly positive.

The purpose of this study was to review the role of audit quality in reduction of information asymmetry in Iran`s capital market. According to literature, high quality disclosure would result in publicizing some confidential information, decreasing the amount of information speculation by aware exchangers, and reducing investors` motives for gaining confidential information. So it is expected that increase of audit quality leads to decrease of information asymmetry. To achievement of research goals, one main hypothesis and two sub-hypotheses were provided which supposed the significant adverse relationship between auditing quality and information asymmetry. In this research auditing quality is measured through auditing institution`s size and auditor`s rotation. Research population includes listed companies in Tehran stock exchange and Study duration encompasses the beginning of year 1388 to the end of year 1390. Results show that that auditing quality does not affect the information asymmetry reduction in Iran`s capital market. Auditing quality, Information asymmetry, Auditor turn over.

A large part of organization’s capital is dedicated to working capital and its management has great importance. There is an invert U-shaped relation between working capital management and firm’s financial performance. Regarding to this point that financing conditions may play important role in this relation, the aim of this study is to investigate the impact of financial constraints on the relationship between working capital management and financial performance. It’s a descriptive-correlation study and is based on analysis of panel data. Our sample includes the financial data of 90 listed companies in Tehran Stock Exchange during the period 1386 to 1392. Using cost of external financing as a proxy of financial constraints, it is shown that these financial constraints have meaningful impact on the relationship between working capital management and firm’s financial performance. And the optimal level of working capital is lower for firms that are more constrained financially. Our results suggest that because of cost of recede from it, managers should pay attention to the optimal level of working capital.

Audit committee as a significant part of the Corporate governance system, can lead to improved performance and firm financial reporting process. The main purpose of the current study is to investigate the relation between audit committee characteristics (financial expertise, independence, and size) and the performance of those firms enlisted in Tehran Stock Exchange. In this study, firm performance is evaluated using Tobin’s Q and ROA indexes. The research statistical population include 132 firms and the period from 2012 to 2014. The statistical population of this research consists of 132 firms from 2012 to 2014. The results of hypotheses tests, using the multiple, combined regression, indicate the fact that there has been a positive, significant relationship between audit committee financial expertise and its performance, based on Tobin’s Q and ROA indexes. Also, a positive, significant relationship was observed between audit committee independence and its performance, based on ROA index. Nonetheless, there was no significant relationship between audit committee independence and its performance, based on Tobin’s Q, and audit committee size, based on Tobin’s Q and ROA indexes.

In this study, the effect of companie's information disclosure quality on the value relevance of accounting earning in companies listed on the Tehran Stock Exchange has been investigated during the period 2010-2013. 175 companies listed in Tehran Stock Exchange have been examined during the mentioned period. The panel/pooled regression analysis has been used to test the research hypotheses. In this study, the reliability and timeliness scores based on the companie's information disclosure status have been used to determine the companie's information disclosure quality as independent variables. Findings showed that according to the price and return model, the reliability of information disclosure has no effect on the value relevance of accounting earnings. However, the timeliness of firm information disclosure has a direct effect on the value relevance of accounting earnings, according to price and return model. Also, the auditor type and the book value have a significant and direct effect on the market value and the company size has a significant and negative effect on market value ratio.

The purpose of this study is determining the effect of intellectual capital information voluntary disclosure on information asymmetry of the Listed Companies in Tehran stock exchange. According to prior researches (Li & Haniffa (2007) and Ibikonel et al (2013) and Zuaini & Abood Mohammad (2013) ), a dummy variable define to expose the intellectual capital information voluntary disclosure and by investing the report board directors, determine a score for each company to expose this and information asymmetry measure based on Stoll (1989). In this study 137 companies were selected by systematic elimination for a period of 5 year (2010-2014). The results of the study hypothesis suggest that by increasing the intellectual capital information voluntary disclosure, reducing the information asymmetry.In other words ntellectual capital information voluntary disclosure in the period under review, reducing the informationasymmetryof the Listed Companies in Tehran stock exchange.. Results are consistent with findings Zuaini & Abood Mohammad (2013).

Internal auditors are expected to increase the auditing of IT in their organization, but despite all the inherent advantages of information technology, yet its use is associated with employee resistance to adoption of information technology. The purpose of this is to explain the mechanism of influence of organizational factors, social, technology, perception and usage of IT internal audit as internal auditors is among the factors influencing the adoption of information technology. Using data collected from a sample of internal auditors as well as the Analytic Hierarchy Process (AHP) to rank the factors, binomial test results (relative) certain theory that all factors, internal auditors are effective adoption of information technology among, factors such technology is the most effective factor among other factors. More attentive to the importance of factors such as technology, relevance and results of using information technologies as well as the quality and quantity of outputs used, on acceptance of data across IT Systems, increasing the internal auditors, The reason is that if internal auditors are not comfortable with the use of advanced information technology, it is much less likely to use technology, even when the technology for the benefit of the organization.