Investigating The effects of accounting and business cycles in the evolution of the Tehran Stock Exchange

In this research we study the effect of accounting data behavior according to the business cycles in Tehran stock exchange. More over this research examines the behavior of accounting data according to the business cycles, by considering the special features of companies. The studied accounting data in clouded sales growth, gross profit margin changes, changes in profit before tax and net profit and total assets changes. The results of this research show that in Tehran stock exchange there are significant relationships between some of the accounting variables (sales growth and gross profit margin) with business cycles and no relationship is seen among some of the variables (such as total assets changes). Moreover this research's findings indicate that the relation between the accounting data and business cycles is affected by the size of company and cyclical or non-cyclical nature of company (special features of companies). [Alireza Askarpour, Zahra Rahmati. [Alireza Askarpour, Zahra Rahmati. Investigating The effects of accounting and business cycles in the evolution of the Tehran Stock Exchange. Life Sci J 2012;9(4):717-724] (ISSN:1097-8135). http://www.lifesciencesite.com. 112