The Role of Releasing Financial Statements in Shaping Behavioral Biases

Document Type : Original Article

Authors

1 Ph.D. Candidate in Accounting, Faculty of Faculty of Social Sciences Imam Khomeini International University, Qazvin, Iran.

2 Assistant Prof., Department of Accounting, Faculty of Social Sciences Imam Khomeini International University, Qazvin, Iran.

10.61186/ijf.2024.458409.1473
Abstract
The publication of financial statements, a vital corporate communication tool, significantly influences behavioral biases in both individuals and organizations. While the importance of behavioral factors for investors is well recognized, the impact of financial statement releases on these biases in the Iranian capital market has yet to be thoroughly examined. This study investigates the effect of financial statement releases on two key biases: loss aversion and overconfidence among investors. By employing both quantitative and qualitative research methods, comprehensive data was collected from the Iranian stock market. For the analysis of loss aversion, a sample of 111 companies over six years (2017–2022) was selected using the systematic elimination method, while overconfidence bias was assessed at the market level. An event study method was used to measure the impact of financial statement releases on these biases. To analyze loss aversion, a regression model using the Dynamic Panel Data (GMM) method was applied, and for overconfidence, a Vector Autoregression (VAR) model was estimated during the financial statement release period at the market level. The findings show that investor’s exhibit heightened loss aversion during financial statement releases, and overconfidence bias was also evident, with investors attributing positive market outcomes to themselves and acting more aggressively in subsequent transactions. Based on the results, investors should consider behavioral bias patterns in their decision-making and incorporate technical analysis. Additionally, companies should ensure transparency and accuracy in their financial statements while remaining attentive to market behaviors and reacting promptly to changes.

Keywords


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