درخت حوزه‌های تخصصی

The purpose of this study is to explain the relationship between the comparability of financial statements as a qualitative financial reporting feature with the expected risk of stock price crash. The statistical population of this research includes all companies admitted to Tehran Stock Exchange. In order to achieve the research goal, 81 companies were selected for the period between 2010 and 2017 as a sample of the study. The research aimed at being an applied research and the research method is in terms of the nature and content of the correlation. The research has been performed in the framework of deductive-deductive reasoning and for analysis of the research hypothesis; statistical analysis of the logistics has been assisted. The results of the research hypothesis test showed a significant and negative relationship between the comparability of financial statements and the expected crash in stock prices.

This research investigates the capital market's efficiency relative to the decreasing and increasing information the components of cash and accrual of the accounting earnings. In the accrual accounting system, accounting earnings includes two components of cash and accrual. Information about decreasing and increasing values of the normal and abnormal portion of the changes in financial assets as a cash component is compared with the information on the decreasing and increasing amounts of discretionary and non-discretionary accruals. The required data was extracted from the financial statements of the listed companies in Tehran Stock Exchange during the years 2003 to 2017. In order to estimate the research models from the regression with the combined data as well as the equations system, the simultaneous equations system with the seemingly unrelated regression (SUR) approach are utilized and then some experiments are implemented to evaluate the research hypotheses by using Mishkin’s test. The results reveal that the capital market is inefficient in terms of the increasing information (positive portion) of accrual and discretionary accruals and information on abnormal changes in financial assets (increasing and decreasing), but rather on the information (negative) of discretionary and non-discretionary accruals and abnormal changes in the financial assets (increasing and decreasing).