بهاره محمدطالبی

Return on investment is a driving force that motivates and is a reward for investors. Investment returns are important for investors, in order for the entire investment game to be realized. Evaluating efficiency is the only logical way (Before risk assessment) that investors can do to compare alternative and different investments. Measuring real returns (relative to the past) is needed to better understand investment performance. Particularly, the study of past returns has a major role in predicting and predicting future returns. Therefore, the present study seeks to "investigate the effect of the internal rate of return on cash recycling on unusual returns as well as the effect of cost leadership strategies variables on the relationship between the internal rate of return on cash recycle and the unusual returns in the period from 2009 to 2013. In this research, the sample consists of 72 companies that have been selected by systematic elimination method, which is a total of 360 years. In this research, linear regression and correlation coefficient were used to investigate the hypotheses of the research. EVIEWS software has been used to analyse the data and test the research hypotheses. According to the regression results, the following results were obtained: 1. An internal rate of return on cash recycling affects unusual returns. 2. The internal rate of return based on the recycling of cash The abnormal returns affect the strategy of cost leadership.

Companies must publish financial reports on time. When market information is more important and this information is used to shape more effective decision-making. Although most companies, financial reports required by the authorities at intervals determined Speak but at the same time, it can be claimed that the delay in publishing the financial reports of a company to another company, the difference is significant The statistical sample included 116 companies in Tehran Stock Exchange during the years 2010 to 2014. In this study, the hypothesis of linear regression was used Software to analyse data and test hypotheses have been used Eviews results The research suggests that the company's sales on the disclosure of bad news affects companies as well as participate in interactive sales ratio of sales to working capital, fixed assets is effective.

Management is trying to maximize your rewards and that means in terms of net profit, return on investment (performance) or other accounting measures and also by trying to Making positive changes in the prices of corporate securities to be done. In other words, the maximum managers Their interests are trying to improve corporate performance and the improvement of the capital Investors will be aware of the attention and increased trade and thus share in research Willing to "review the independent non-executive directors' fees from the perspective of agency theory" discussed Is. The sample is composed of 92 companies selected by systematic elimination Is. The company had a total of 460 years. To analyze the data analysis and hypothesis testing This software has been used 7 EVIEWS according to regression analysis, the following results were obtained: Between independent non-executive director's fees and visible efforts there is a significant positive relationship manager. Between independent non-executive directors' fees and the number of board meetings there is a significant positive relationship.

In this study business operations and liquidity and credit risk on price fluctuations on the stock exchange since 2010 to 2013 has been Tehran distance. The sample consisted of 76 company The systematic elimination method is selected. The company had a total of 304 years, in this study, the hypothesis of linear regression and correlation to analyse the data and test hypotheses Eviews software is used. The results show a direct linear relationship between the number of business deal with price volatility as a factor in companies listed on the Tehran Stock Exchange respectively. In addition, liquidity and credit risks and price fluctuations affect the relationship between business activities