RETRACTED: New hybrid methodology for stock volatility prediction

https://doi.org/10.1016/j.eswa.2007.12.004

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).

This article has been retracted at the request of the Editors-in-Chief.

The article duplicates significant parts of a paper that had already appeared in Journal of Grey Systems, Volume 8, Issue 1 (2005) pp. 1–12. DOI 10.30016/JGS.200507.0001. One of the conditions of submission of a paper for publication is that authors declare explicitly that the paper has not been previously published and is not under consideration for publication elsewhere. Re-use of any information and content should be appropriately cited. As such this article represents a misuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.

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