The Effects of Financial Reporting Complexity on the Trading Behavior of Investors in the Iran Capital Market

The discuss and concerns about the complexity of the current financial reporting systems have become increasingly important in the world for international standard- setters. If market shows an inadequate response to information extracted from the annual reports, managers have an incentive to provide more complex reports in poor conditions. In accordance with the "Management Obfuscation Hypothesis" when the companyʾs future landscape is acceptable, managers have a better disclosure. In this study, using data from 30 companies listed in Tehran Stock Exchange in the period of 2007-2011 and multiple linear regressions, the effects of annual reports complexity on trading behavior of investors is examined. The results showed that complex reports lead to reduced trading volume. However, the effects of complex reporting on trading volume among small investors are more tangible. Reports complexity reduces the trade consistence between investors.