The Investigation of Cash Flow Volatility on Systematic Risk in Accepted Companies in Tehran Stock Exchange

Evaluation of utility of a platform investment in uncertain status is based on its risk and return values. In other words, awareness from risk of companies, especially the systematic risk can play an important role in decision-making. The main purpose of this research is study of effects of volatility in cash flows on systematic risk. In this study the effect of volatility in cash flows related to each of the sections of Cash Flow Statements (accounting standards of Iran) on systematic risk of listed companies in Tehran Stock Exchange has been studied. The aim of this research is Applied Research and research method is causal or post facto method. In this study, financial information of 73 companies listed in Tehran Stock Exchange during the period 2004 to 2008 were investigated. In order to test the hypotheses, statistical techniques of correlation and regression analysis and test of significance for the Pearson model, T and F has been used.The results show that volatility in cash flows from operating activities, volatility in cash flows related to income tax, volatility in cash flows from investment activities and volatility in cash flows from financing activities have positive effect on systematic risk, while volatility in cash flows related to investments returns and interest and dividend paid for financing activities has no impact on systematic risk.