Univrsity Of Tehran Press Accounting and Auditing Review 2645-8020 17 3 2010 11 22 The investigating Response of Investors to Aspect of Accruals, Investment The investigating Response of Investors to Aspect of Accruals, Investment 21682 FA Hanid Haghighat Aliakbar Iranshahi Journal Article One of the efficient capital market assumptions is that rational investors react to new information, but experimental results indicate that the type of reaction to new information published is different and in some cases is not completely rational. In other words, people affected by psychological and behavioral factors may show different reactions and cause some abnormalities, including increased too much or less than is price. The purpose of this study was to evaluate the reaction of investors to Accruals which is creating Accrual anomaly in market. The statistical study included all the accepted companies in Tehran Stock Exchange for during the period 1999-2007. collectively we conclude that in the market there is Accrual anomaly and these resualt support the view that the accrual anomaly is attributable to the fundamental investment information contained in accruals. One of the efficient capital market assumptions is that rational investors react to new information, but experimental results indicate that the type of reaction to new information published is different and in some cases is not completely rational. In other words, people affected by psychological and behavioral factors may show different reactions and cause some abnormalities, including increased too much or less than is price. The purpose of this study was to evaluate the reaction of investors to Accruals which is creating Accrual anomaly in market. The statistical study included all the accepted companies in Tehran Stock Exchange for during the period 1999-2007. collectively we conclude that in the market there is Accrual anomaly and these resualt support the view that the accrual anomaly is attributable to the fundamental investment information contained in accruals. https://acctgrev.ut.ac.ir/article_21682_a819d06508519977b9bc88e9f00837ca.pdf