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This study aims to investigate the accounting role’s deficiencies in managers’ decision-making processes.

The current research applies a critical review method, which along with a deductive approach – based on a library review of existing sources – examines the underlying causes for the deficiencies of accounting role in the decision-making process of managers; moreover, based on the results obtained, the current study proposes a structural model to explain the issue.

The results exhibit the inadequacies of the accounting role in the decision-making process of managers into three sections: “dilution of financial reporting information content,” “malpractice of accounting information providers” and “managers’ unwillingness to use accounting information.”

This research provides a new perspective on critical accounting studies for the accounting profession, policymakers and managers and invites them to examine the roles of accounting information in more depth and breadth.

This article is the first study that critically expounds upon the literature on the deficiencies of accounting role in the decision-making process of managers and presents these deficiencies in the form of a structural model from three different perspectives.

The abnormality of the month-of-the-year and Ramadan effects has extensively existed in the stock and other markets. The commercial strategy pattern and the computation of such predictable patterns in the market allow investors to make money. By using anomalies such as the month-of-the-year and the Ramadan effects on earnings management (EM), it is possible to achieve such a goal. This study aims to investigate the month-of-the-year effect and the Ramadan effect on the relationship between accrual earnings management and real earnings management (AEM and REM, respectively) and liquidity in the Iranian capital market.

This empirical analysis comprises a panel data set of 80 listed firms (400 observations) on the Tehran Stock Exchange from 2016 to 2020.

The findings exhibit that when AEM and REM increase, information asymmetry also increases. The simultaneous increase of these variables leads to a decrease in stock liquidity. Furthermore, the results indicate that the month-of-the-year and Ramadan effects intensify the negative relationship between AEM and REM with stock liquidity. Therefore, EM is affected by the investor’s behavior in specific months.

Anomalies caused by the Ramadan effect and the month-of-the-year effect on reducing liquidity in the Iranian stock market were confirmed. Investors can use these anomalies to identify predictable patterns, exchange securities according to those patterns and earn abnormal returns.

To the best of the authors’ knowledge, this is the first study that empirically examined the simultaneous effect of Gregorian and Islamic calendar anomalies on the relationship between EM and liquidity, and while helping managers and other readers, it can be the basis for future research.