The presence of bubbles in the markets and its formation has been regarded by economists and they have been looking to develop methods that can be recognized by using appropriate method for the formation of bubbles. In this paper, first, the formation of bubbles is tested using the new unit root test known as Phillips test (Generalized Sup ADF test) for 50 companies in the Tehran Stock Exchange...

the current study aims to investigate the relationship between stock liquidity risk and financial information quality criteria (i.e. the timely dividends announcement, accruals quality and the percentage of profitability prediction error) of companies listed on the tehran stock exchange. for this purpose, 148 cases of data from listed companies, collected from 2007 to 2012, were employed in ord...

abstract the global economy faces crisis every so often. in recent years, the financial crisis has affected the global economy; all countries, directly or indirectly, are involved. the purpose of this research is to study the impact of the global economic crisis on the capital structure of listed companies in tehran stock exchange. to test this effect, 87 companies listed in tehran stock exchan...

this paper investigates the asymmetry in volatility of returns for the iranian stock market using the daily closing values of the tehran exchange price index (tepix) covering the period from march 25, 2001 to july 25, 2012, with a total of 2743 observations. to this end, two sets of tests have been employed: the first set is based on the residuals derived from a symmetric garch (1,1) model. the...

the presence of bubbles in the markets and its formation has been regarded by economists and they have been looking to develop methods that can be recognized by using appropriate method for the formation of bubbles. in this paper, first, the formation of bubbles is tested using the new unit root test known as phillips test (generalized sup adf test) for 50 companies in the tehran stock exchange...

The purpose of this study is to explain the relationship between the comparability of financial statements as a qualitative financial reporting feature with the expected risk of stock price crash. The statistical population of this research includes all companies admitted to Tehran Stock Exchange. In order to achieve the research goal, 81 companies were selected for the period between 2010 and ...

In the world and in our country, Iran, many researches have been done in the field of financing, but due to the importance of this issue, it needs more thought and contemplation. Therefore, this study assessed “the impact of investments on financing of companies listed on the Tehran Stock Exchange”. The statistical sample is consisted of companies listed on the Tehran Stock Exchange during a fi...

Financial ratios provide an illustration of the financial situation, the company's returns, and the future opportunities of business units. Considering that in traditional methods, the effect of financial ratios on efficiency has been investigated so far, it did not look right; therefore, we sought a method that It can be used to see the effect of financial ratios. In the process of data envelo...