بررسي رابطه ي سطح افشاء و بازده سهام شركت هاي پذيرفته شده در بورس اوراق بهادار تهران

The Study of Relationship between Disclosure Level and Stock Return in Companies Accepted in Tehran Stock Exchange

Having clear and comparable financial information is main factor in economic accountability and economic decision; it is also a unique necessity economic development and growth in both private and governmental scctors. Financial information users especially investors need these -information for affairs such as purchasing and selling the stocks, evaluation of managerʹs performance and other economic decisions. Investors invest in an economic entity when they have enough information about it. Financial information is the most important factor for making a decision in purchasing the stocks, profitability and the return of that company. The company can increase stockholders wealth acquiring appropriate return . In this research, relationship of disclosure level and stock return is studied. The statistical population of this research includes all the accepted companies in Tehran Stock Exchange. The number of these companies has been 439 by the end of 1381. Statistical sample contains 104 companies that have been chosen by stratified random sampling among statistical population. This research includes a hypothesis and a question. To account hypothesis variable of the research the available information in Tehran Stock Exchange has been used . To examine the hypothesis, Pierson correlation coefficient has been used. The research question has been replied according to acquired data, and has no accepted hypothesis in 95 percent confidence level. As a result there s no relationship between disclosure level and the stock return .