Mohammad hosein Ghaemi; Mohammad Rahimpour
Abstract
In the long-run event studies, the measurement of abnormal performance due to specific events in the long run is done according to different methods. The calendar - time portfolio approach is one of those methods used to calculate the abnormal returns resulting from the effect of the event being investigated ...
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In the long-run event studies, the measurement of abnormal performance due to specific events in the long run is done according to different methods. The calendar - time portfolio approach is one of those methods used to calculate the abnormal returns resulting from the effect of the event being investigated on the stock price of the firms. In this study, based on the data of 321 firms in the period of 1396-1380, the power of those methods in the Iranian capital market were assessed through simulation. The results show that following a performance appraisal of stock prices of firms in the long run, the three-year period should be taken into account. In addition, the four-factor model based on stock liquidity in the ordinary least square, and the Fama and French’s three-factor model, a four-factor model based on stock liquidity, a four-factor model based on stock beta and a four-factor model based on accruals in weight-average least squares , were identified as good models in the three-year period.
Mehdi Arabsalehi; Narges Hamidian; Hadi Amiri
Abstract
The purpose of this study is investigating the role of accounting information uncertainty on investors’ reaction to earnings announcement, as well as investors’ reaction to good earnings news. For doing so, a sample of 162 listed companies in the Tehran Stock Exchange in the period 1384 to ...
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The purpose of this study is investigating the role of accounting information uncertainty on investors’ reaction to earnings announcement, as well as investors’ reaction to good earnings news. For doing so, a sample of 162 listed companies in the Tehran Stock Exchange in the period 1384 to 1394 have been selected. Three criteria including information quality, cash flows’ uncertainty (traditional and matched- firm method) were used for calculating the information uncertainty. The results of hypotheses test indicated when there is high information uncertainty (compared to low uncertainty), investors’ reaction to earnings announcement is less. Also, under high uncertainty, investors display less reaction to good news that this response is consistent with the conservatism approach.
Rahmat Allah Houshmand Zaferanie; Omid Pourheydari
Volume 12, Issue 45 , April 2015, , Pages 39-58
Abstract
The purpose of this study is investigation of the type and information content of accounting adjustments of Firms Listed in the Tehran Stock Exchange (TSE). In this regard, in order to measure the information content of accounting adjustments, the mean cumulative abnormal returns before and after the ...
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The purpose of this study is investigation of the type and information content of accounting adjustments of Firms Listed in the Tehran Stock Exchange (TSE). In this regard, in order to measure the information content of accounting adjustments, the mean cumulative abnormal returns before and after the information has been released. The data used, has been extracted from firms listed in the Tehran Stock Exchange (TSE) in the period 1380-1389. A paired comparison test is used for testing of hypotheses and data analyses. The results of the present study showed that there accountings adjustments have been information content to capital markets and the market shows negative reaction to the accounting adjustments. Also, results showed that the Iran capital market shows a negative reaction to accounting adjustment of errors kinds accounting, income and costs transfers; So that the difference in average abnormal returns for these adjustments were %3/41, %3/44 and %4/52. In addition, the results showed that the cumulative abnormal returns before and after the publication of information on the accounting adjustment of type positive accounting errors, there is not a significant correlation, Therefore, we cannot determine that the market reacts to such adjustments or not. In other words, the capital market show not is interpreting reaction to accounting adjustments of positive accounting errors.
Hassan Hemati; Zohreh Yosefirad
Volume 9, Issue 33 , April 2011, , Pages 127-148
Abstract
The aim of this study is to investigate the relationship between diversification strategy and cash holding with abnormal return of TSE listed companies. For this purpose, three hypotheses were developed to investigate the relationship between diversification strategy and cash holding with abnormal return ...
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The aim of this study is to investigate the relationship between diversification strategy and cash holding with abnormal return of TSE listed companies. For this purpose, three hypotheses were developed to investigate the relationship between diversification strategy and cash holding with abnormal return of companies and the sample data were extracted from financial statement of listed Companies during the period 2004 to 2008. Results revealed that there is a negative and significant relationship between abnormal returns and diversification strategy, but relationship between abnormal returns and cash holding was not statistically significant. The results also revealed that diversification strategy has positive and significant impact on the relation between abnormal returns and cash balance.
Mohsen Khoshtinat; Hamed Fallah Joshaghani
Volume 5, Issue 17 , April 2007, , Pages 1-25
Abstract
In this study the effect of "Financial Leverage (FL) on Earning Response Coefficient (ERC)" for accepted members of Tehran Stock Exchange is considered. The purpose is to find out whether or not the investors, analysts, etc. consider the capital structure and leverages of the firms when reacting to the ...
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In this study the effect of "Financial Leverage (FL) on Earning Response Coefficient (ERC)" for accepted members of Tehran Stock Exchange is considered. The purpose is to find out whether or not the investors, analysts, etc. consider the capital structure and leverages of the firms when reacting to the good and bad news caused by revealing the accounting in formation.
Financial Leverage measurement approaches are of two divisions as follows:
I) Income Statement
2) Balance sheet
In this research balance sheet approach i s used. In this approach, two definitions have been considered for leverage.
I) Debit/ assets Ratio
2) Debit I equity Ratio
Both definitions are used here. Studying the only research hypotheses using the regression analysis during 2000-20004 indicates that in the first leverage definition there is a reverse relationship between FL & ERC in the whole sample and in high leverage and in the second definition i n high leverage. However in the first definition in low leverage and i n the second one in the whole sample and in low leverage there's no considerable relationship between ERC and FL.
