Shareholders wealth and mergers and acquisitions (M&As)
We re-examine the abnormal returns (ARs) around merger announcements using a large sample of 8,945 announcements. We estimate the ARs using the Carhart (1997) four-factor model under the standard ordinary least square (OLS) method and the Glosten et al.’s (1993) asymmetric GARCH specification (herea...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
LLC "CPC "Business Perspectives"
2017-10-01
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| Series: | Investment Management & Financial Innovations |
| Subjects: | |
| Online Access: | https://businessperspectives.org/images/pdf/applications/publishing/templates/article/assets/9195/imfi_2017_03_Kyei-Mensah.pdf |
| Summary: | We re-examine the abnormal returns (ARs) around merger announcements using a large sample of 8,945 announcements. We estimate the ARs using the Carhart (1997) four-factor model under the standard ordinary least square (OLS) method and the Glosten et al.’s (1993) asymmetric GARCH specification (hereafter, GJR-GARCH). Under the OLS method, acquirers do not generate significant cumulative ARs (CARs) in line with prior work. Our new results, however, show that under the GJR-GARCH estimation, acquirers generate positive and significant cumulative CARs. We attribute the gains to the use of the GJR-GARCH estimation method, as the GJR-GARCH method is more effective in capturing conditional volatility and asymmetry in the excess returns. |
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| ISSN: | 1810-4967 1812-9358 |