Investigating the persistence of abnormal changes in components accounting earnings companies listed on the Stock Exchange of Tehran

Accounting earnings and its components, including the information that investors will consider them in making decisions. Information about earnings and its components is important to predict future earnings. Given the importance of the information content of earnings and its components, The aim of this research is to investigate the persistence of cash components of earnings in companies listed on the Stock Exchange of Tehran. For this purpose, four hypotheses are examined with data from 147 companies in Tehran Stock Exchange for the period between the years 1382 to 1390. To test the hypotheses, multiple regression techniques and panel data methods are used.
Results showed that negative abnormal changes in cash balance is more persistence than positive abnormal changes in cash balance and also positive and negative abnormal change in cash are more persistence than accruals.