فهرست مطالب hamid bodaghi

This paper sought to address the feasibility of dissecting stock price momentum in the firms listed in Tehran Stock Exchange using financial statement analysis (FSA). Different variables including those related to profitability, financial leverage and liquidity, and operating efficiency were used in this analysis. The study sample consisted of 130 firms listed in Tehran Stock Exchange over the period 2008-2019. The results showed that fundamental factors affected stock price momentum for one year in the winning portfolio and for two years in the losing one; after this period, financial information did not have a significant effect on stock price momentum. Therefore, stock price momentum performance is a function of the conformance of the past price performance to fundamentals. The results from investment strategies based on the past price performance-fundamentals conformance indicated that fundamentals cause a significant difference in stock excess returns in winning and losing portfolios.

Positive changes in cash holdings have led to an increase in the company's cash reserves, which can lead to an increase in positive changes in trade credit (increase in trade credit). The main purpose of this study is to investigate the relationship between trade credit, cash holdings and product market competition in companies listed in the Tehran Stock Exchange. To test the research hypotheses, a multiple linear regression model based on panel data has been used. The results of the survey of 140 companies listed on the Tehran Stock Exchange during the period 2014 to 2020 indicate that there is a positive and significant relationship between changes in cash holdings and changes in trade credit. In other words, in companies where there were more changes in cash holdings, the level of change in trade credit was also higher. Findings showed that financial strength has a positive effect on the relationship between changes in cash holdings and changes in trade credit. In other words, companies with higher financial power had a greater effect of the change in cash hold on the change in trade credit. Also, the results showed that market power has a positive effect on the relationship between changes in cash holdings and changes in trade credit. In other words, companies with more market power had a greater effect of the change in cash holdings on the change in trade credit. Findings showed that investing in research and development has a positive effect on the relationship between changes in cash holdings and changes in trade credit. In other words, firms with R&D expenditures had a higher impact of the change in cash retention on the change in trade credit.

Understanding cost behavior is one of the most important topics in cost accounting and management accounting. Cost stickiness refers to the fact that the intensity of cost reductions due to the decrease in activity volume is less than the intensity of cost increases due to the increase in activity volume, which on the one hand can increase the likelihood of the company losing money next year., This variable increases the audit fee in companies. Therefore, the main purpose of this study is to investigate the effect of cost stickiness on the probability of loss of the company in the coming year and the audit fee in companies listed on the Tehran Stock Exchange. The statistical population of this research includes 101 companies listed on the Tehran Stock Exchange during the period 2013 to 2019. To test the research hypotheses, logistic regression and multiple linear regression based on panel data (random effects pattern) were used. Research findings show that cost stickiness has a positive and significant effect on the likelihood of the company losing money in the coming year; Also, cost stickiness has a positive and significant effect on audit fees.

The efforts of the developers of the laws and regulations of capital markets over the past years have also been aimed at raising the level of information transparency in order to Companies in this field can be successful in terms of both the technical and managerial dimensions and the ability to meet the expectations of shareholders and investors. The purpose of this research is the effect of CEO Managerial Ability on Marginal Value of Cash and Corporate Opacity of Companies Listed on Tehran Stock Exchange. The research period is 2013 to 2017, and 123 firms were tested using multivariate regression model. In this research, for measuring the Managerial ability of Demerjian et al (2012), Marginal Value of Cash from Faulkender and Wang (2006) model was used to measure the final value of cash, and the model Uygur (2018) was used to measure Corporate Opacity. Findings of the research show that asset companies have higher managerial ability than asset companies. The lower managerial ability has a more positive and positive effect on the on Marginal Value of Cash. It was found firms with higher managerial ability, with Trading volume and Earnings Timeliness that two criteria are Corporate Opacity, and a significant positive correlation. But with the bid-ask spread as another component of Corporate Opacity has a negative and significant relationship.

 This study addressed the effects of financial information on stock price momentum in winning and losing portfolios using data mining methods (neural network and decision trees) in firms listed in Tehran Stock Exchange. The financial analysis included three general categories: profitability variables (return on assets, cash flows, accruals, and profitability growth), leverage and liquidity variables (financial leverage, liquidity ratio, and share issue), and operating efficiency variables (profit margin and assets turnover). The study sample comprised firms listed in Tehran Stock Exchange in the 2008-2019 time period. The results of the data mining model showed that the profitability variables had the greatest effect on the stock future returns in both winning and losing portfolios. This result has an important implication for investors in stock exchanges: when selecting a share, the investor is advised to choose a firm with high profitability on the basis of simple indices the present study introduces.

The present study aimed to examine the relationship between Risky Investment and Human Capital. For this purpose, a sample consisting of 115 company in the period 2011 to 2016 were studied. In the research process unlevered daily stock return volatility is introduced as criteria for measure risky investment (independent variable) and; to evaluate human capital as dependent variable, two criteria included the board compensation and the costs of salary were used. The results of the hypothesis test showed that there is a significant, inverse relationship between risky investment and the compensation of the board, probably due of the lack of effective and complete market and the way of approval and payment of board compensation in Iran. There is not a significant relationship between risk investment and employee payroll. In addition, evidence suggest that payment of salary to the employees which was greater than the average of the salaries of the sample companies, did not have a significant effect on the relationship between risky investment and personnel salary. This could possibly indicate that companies are not paying enough attention to the importance of human capital as a valuable resource.

Accounting information system, as a supplier of information for managers in order for making accurate and reasonable decisions, is of great importance to achieve the organizational goals when encountering adversities. The applied accounting basis for presenting accounting information affects public section’s reporting. As a result, appropriate accounting basis should be deployed in the public section. The present study aimed to assess the adversities which may occur during the process of accrual basis in accounting of public section.
Needed data was collected through a questionnaire distribution among the employed accountants and financial managers in public organizations of Khorassan Razavi. Binomial test was applied due to the non-normality of the research sample for testing the hypotheses.
Findings: The achieved findings of hypotheses testing indicated that employed accountants and financial managers in public organizations regarded the followings as adversities ahead of executing accrual basis: paucity of rules and regulations based on supporting the execution of accrual accounting, lack of regulated standards of public accounting in Iran, cultural deficiencies in asking and giving response.
Originality/value: The current study intended to investigated adversities and obstacles which may occur when applying accrual basis in public organizations. Removing these difficulties could facilitate and modify accounting basis in the public section.

The most investigation of earnings Management literature are about why and how earnings management are done and what the results of this behavior i s. But there have been very few researches on the ways to controlling this. This research pays attention to more and more complete disclosure as an approach for reducing earnings management.
In this research, disclosure quality is prepared and measured, using a check list containing 235 mandatory disclosure items (as Iranian accounting standards). Earnings management is also measured, using modified Jones Model, on discretionary accruals, and are finally used for testing the hypothesis. Hypothesis are tested as cross- sectional for the years 1382 to 1384 and accumulated.
The  results  in  year  to  year  investigations  only  for  the  year 1384 show  statistically  significant  negative relationship between disclosure  quality  and  earnings  management.  And in total of three years, investigations show no significant relationship.