The price effects of FTSE 100 index revision: what drives the long-term abnormal return reversal?
We examine short- and the long-term price effect associated with the FTSE 100 index revisions. We control for both heteroskedastic nature of the residual and the change, between the estimation and the test period, in the beta coefficient of the standard market model. Our findings reveal no relationship between the long-term price reversals and the change in the discount rate, as approximated by the beta coefficient of the market model. Overall, we provide strong evidence in favour of the price pressure hypothesis, where the price increase (decrease) gradually starting before the announcement an inclusion (exclusion) and reverses completely in less than two weeks after the index revision date.
Year of publication: |
2007
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Authors: | Mazouz, Khelifa ; Saadouni, Brahim |
Published in: |
Applied Financial Economics. - Taylor & Francis Journals, ISSN 0960-3107. - Vol. 17.2007, 6, p. 501-510
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Publisher: |
Taylor & Francis Journals |
Saved in:
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