Analyzing the efficiency of capital market relative to the decreas-ing and increasing information of the components of accounting earnings

Document Type : َApplied-Research Paper


1 Department of Accounting, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.

2 Department of Accounting, Masjed-Soleiman Branch, Islamic Azad University, Masjed-Soleiman, Iran

3 Department of Economic, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran



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).


Main Subjects

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Volume 7, Issue 1
January 2022
Pages 199-216
  • Receive Date: 04 June 2019
  • Revise Date: 24 September 2019
  • Accept Date: 30 September 2019
  • First Publish Date: 01 January 2022