فصلنامه مطالعات تجربی حسابداری مالی
پیاپی 34 (تابستان 1391)

This research examines the consequences of earnings manipulation through real activity and campares it with cosequenses of accrual manipulation based on earnings manipulation models provided by Roychowdhury (2006) and Gunny (2010). Statistical sample consists of listed companies in Tehran Stock Exchange over the years of 2000 to 2011. Literature Review indicates that real manipulation take place by using mehods such as offering discount, extend more lenient credit terms for sale, overproduction and reduced discretionary expense.Based on literature, firms with low return (first interval to the right of zero inearnings distributions) were detected as suspet firms to real and accrual manipulation. Results indicate an increase in abnormal accruals and abnormal production costs, and abnormal discretionary expenses and operating cash flows in suspect firms. After detecting earnings manipulation proxies, consequence of earnings management through real activities on future profitability and cash flow from operation were examined and compared with accrual manipulation. The Results of testing hypotheses indicate a negative effect of real manipulation on future performance.

This study examine the association between accounting restatements and the pricing of information risk in companies listed in Tehran Stock Exchange. And the period of the study is from 1384 uo to 1389.Using the Fama and French three-factor model augmented with discretionary and innate information risk factors, we find a significant increase in the factor loadings on the discretionary information risk factor for restatement firms after a restatement announcement.We study several potential determinants of the change in information risk pricing and find evidence consistent with the core account restatements and the number of times a firm restates affecting the change in the pricing of innate information risk.

In this paper the functional fixation hypothesis is tested from investors’ viewpoint of net operating assets (bloated balance sheet phenomena). The study is at firm level in Tehran Stock Exchange using the data of 153 firms for 7 years (1382- 1389). The functional fixation hypothesis states that If investors with limited attention focus on accounting profitability, and neglect information about cash profitability, then net operating assets, the cumulative difference between operating income and free cash flow, measures the extent to which reporting outcomes provoke over-optimism. Our findings from Univariate and Multivariate regressions show that the hypothesis is accepted based on multivariate test and is rejected based on univariate test. These findings show that with control variables consideration bloated balance sheet affect investor decision process in Iran, too.

An increase in the ratio of sales, general and administrative costs to sales (SG&A ratio) is associated with contradictory interpretations, namely a negative one due to deficient cost control and a positive one derived primarily from investments for improvement of operational processes. Based on these conflicting explanations, it is crucial to distinguish between whether an increase in the ratio of SG&A costs to sales is actually intended by management in order to enhance future profitability or it is because of deficient cost control. These explanations were investigated in this research. So the impact of cost efficiency on the relation between SG&A ratio and future performance is examined among 150 firms during 1380 to 1389. Findings show that intended increases significantly enhance future operating income and future sales, but non-intended increases in this ratio, decreases future operating income. Moreover, increases in SG&A ratio, cause decreases in future SG&A expenses in both efficient and inefficient firms, but dosen’t have a significant impact on future cost of goods sold (COGS). To study in more details, the SG&A efficiency and COGS efficiency were used in model at the same time and findings show that the impact of SG&A ratio on future operating income is significantly positive only if SG&A efficiency exists and also there is ample latitude for reduction of COGS. Because only in this way, SG&A costs represent investments in improving manufacturing efficiency.

Tax revenue is one of the most important financial sources of the Government, which has a leading role in the economic development of each country. However, some companies try to avoid paying their correct taxes, which creates a problem called "tax evasion". The difference between the tax stated by the company and the tax payment identified by the tax authorities (Tax Organization) can be considered as an example of tax evasion. At this time, Tax organization is applying traditional methods to deal with this challenge, which can reduce the Government's revenue and increase its expenses in the long-term. The objective of this research is to apply data mining techniques to examine the effects of financial and non-financial variables on tax evasion by the companies operating in automotive and parts manufacturing industry. The findings show that "assets to net revenue ratio", absolute value of interest expense to net revenue ratio", and board independence" increase and "net income (loss) to assets ratio", and company's performance (net income or loss) decrease the likelihood of tax evasion. These findings can help tax authorities in both policy making as well as conducting tax audit.

This study investigates whether dividend paying status is associated with the Quality of earnings. Four measures are defined as proxies for earnings Quality; discretionary accruals, standard deviation and absolute magnitude of the accruals errors, and value relevance.To test the hypotheses, 450 year firms were selected from companies listed in Tehran Securities Exchange (TSE) during 2005 to 2011. We used a multiple linear regression model. Findings show that firms with dividend paying have (1) lower absolute values of discretionary accruals; (2) lower absolute magnitude of the errors associated with the mapping of accruals into cash flows; and (3) more value relevant earnings. But results is not significant for standard deviation of the accruals errors. Larger dividends strengthen the positive association between dividend paying status and earnings quality.

The timing of an annual report announcement is a disclosure decision that managers must make. The users recognize timeliness as an important characteristic of usefulness of accounting information. In this research, we investigate relationship between a set of explanatory variables (such as returns on equity, changs of stock return, financial risk and size) and timing of annual financial reporting. we have used the financial data of 88 firms listed at Tehran Stock Exchange (TSE), that have analyzed for during 2004 to 2010 by using of the Panel Data System and Ordinary Least Square Regressions (OLS) Model. The results of regression show that timeliness in reporting by TSE listed companies is influenced by their profitability. We find that returns on equity and changes in stock returns are positively associated with the annual financial reports earlier and financial risk and changes in financial risk are negatively associated with the annual financial reports earlier. In addition, the results indicate that the timing of annual report releases is significantly affected by company size.