فصلنامه مطالعات تجربی حسابداری مالی
پیاپی 32 (زمستان 1390)

The aim of this research is to investigate the effect of the earnings quality on improving the stock liquidity of listed companies in TSE. In this study, the earnings quality based on earnings stability, and two transactional criteria (the trading days and the ratio trading volume) and two informationalcriteria (the ratio depth and ratio spread) used to measure of the stock liquidity. To conduct this research, 94 listed companies in TSE during 2002-2011 via panel regression models (fixed effects) were investigated. Findings indicate that there aren’t significant relationships betweenthe earnings quality and different criteria of the stock liquidity.

Disclosure of Comprehensive income items helps to shareholders to evaluate the stock returns and managers to improve the allocation of financial resources can help. Comprehensive income is reported net profit, FCT, SEC, AA. If classified information is expected to increase its financialinformation. Instead of the economic information income in financial reports, such as comprehensive is difficult and the role of financial analysts and the information content of financial statements is impressive. Due to the homogeneity of variables accounting, content relative to comprehensiveincome and the incremental information content the items with Companies listed on stock exchange Tehran data over the years 2001-2010 Using multiple linear regression and the Vuong test were studied. The results show that comprehensive income for the explanatory power is stronger, and theother items of comprehensive income are incremental information content. This result with the research evidence Biddle and Choi (2006) in America, and Kiridaran Kanagaretnam (2009) in Canada is similar.

The economic development necessitate that accounting system should provide accurate, on-time, and reliable information to all parties involved in the planning, implementation and controlling of development projects. So in developing countries such as Iran, accounting education and its development is part of the infrastructure required for economic development.Past studies shows that Iranian accounting education system suffers from some fundamental deficiencies, and does not identify and educate true talents to create essential expertise for different sectors as expected. To remove such barriers, identification of development barriers will be the firststep to be taken. This research, tries to recognize these barriers, and to determine how muchimportant is each of them. At the end, some recommendations have been presented to remove those barriers based on the results. The results show that poor English language ability and IT skills is the most important factor which can be considered as accounting education development barrier inIran.

Regarding the critical role of liquidity in asset price discovery, sharing of financial risk, increasing of expected return and transaction costs reduction, it is important to know about the effective factors. This study examine The effects of the quality of corporate disclosure on stock liquidity. Because of increasingdisclosure quality, reduces information asymmetry and reducing information asymmetry, increases market liquidity so the main hypothesis of this study is that disclosure quality has effect on stock liquidity. In this study, for separating various details impacts of disclosure quality, we used timeliness and reliability and to determine stock liquidity we used 15 different trading and information liquidity measures. 112 Tehran Security Exchange listed companies, from 1384 to 1388 are chosen and research hypothesis were tested by linear multivariable regression in pre and post test. The results indicate that disclosure quality has positive effect on stock liquidity. Also showe positive effect of reliability on stock liquidity.

Managers are trying to decrease the environmental impact of uncertainty in the reported digit of accounting earnings using their authorities and the flexibility from the accounting standards. This paper aims to examine the relationship between environmental uncertainty and accruals. In doing so,the research methodology was conducted on the basis of using multiple regression and correlation analysis.The research hypotheses were analyzed through using the data related to 159 companies from Tehran Stock Exchange during the period, 1379-1387. The research findings show that there is a significant relationship between environmental uncertainty and accruals and in the uncertain conditions, the size of discretionary accruals are more than the size of non-discretionary accruals. But under these conditions, it cannot be claimed that the variation of non-discretionary accruals are more than iscretionary accruals.

There are several criticisms of traditional performance appraisal criterions since of not considering “Cost of Capital” and using traditional accounting methods and roles. Alternatively, economicvalue added and other modern performance appraisal criterions imply cost of capital to provide a better estimation of added values. The relationship between these traditional criterions such as “Returnon Investments” and “Return on Equity” with “Economic Value Added” as a modern criterion has been evaluated through out this research. In addition, it has been discussed how traditionalmeasurements can adapt with economic value added and how their developments can augment economic value added. As a result of the few numbers of Iranian insurance companies wehave exploited society and assessed eighteen active insurance companies of Iran during 2006-2009 Also we used “Rate of Return on Capital” instead of economic value added. Economic value addedis based on the excess amount of money that a company earns on the capital employed. Therefore, comparing it with relative ratios is not reliable. Adjustments of economic value added have been applied based on standard adjustment of economic value added and Iranian insurance companies accounting principles. Research finds that there is a significant relationship between return on investment and economic valued added. Also there is a significant relationship between return on equity and return on economic value added. In addition the relationship between ROE-RROC is moresignificant than ROI-RROC.

This study attempts to find a proper answer to the question of why some firms disclose less than other firms do; although, the disclosure information is important for users of information? Alternatively, why different companies, disclose in different levels of information? For this end, using the panel data analysis the impact of firm ׳s characteristics (size, tangibility, leverage, profitability and growth in profitability) are investigated on different disclosure levels for 128 listed companies in Tehran StockExchange during 2003 – 2009 periods. Our findings imply that, the tangibility, leverage, and profitability affect the disclosure level; however, the size and growth opportunity have an insignificant effect on disclosure. This might be due to the difference in nature of the mandatory and voluntary disclosure. All companies regardless to their situation in the market are forced to disclose their information. Therefore, the accomplished analyses through mandatory and voluntary disclosure level have been also analyzed and compared. The results show that firm ׳s characteristics affect thevoluntary section of total disclosure only.