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  1. Although the use of impact factor-based indicators for science policy purposes has increased over the last two decades, several limitations have been pointed out and should be borne in mind.

  2. Drawing on the existing literature as well as original research, this chapter provides a brief history of the indicator and highlights well-known limitations—such as the asymmetry between the numerator and the denominator, differences across disciplines, the insufficient citation window, and the skewness of the underlying citation distributions.

  3. 23 Δεκ 2011 · The highly popular journal impact factor (JIF) is an average measure of citations within 1 year after the publication of a journal as a whole within the two preceding years. It is widely used as a proxy of a journal’s quality and scientific prestige.

  4. International Scientific Journal & Country Ranking. SCImago Institutions Rankings SCImago Media Rankings SCImago Iber SCImago Research Centers Ranking SCImago Graphica Ediciones Profesionales de la Información

  5. The impact factor can be influenced and biased (intentionally or otherwise) by many factors. Extension of the impact factor to the assessment of journal quality or individual authors is inappropriate. Extension of the impact factor to cross-discipline journal comparison is also inappropriate.

  6. The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.

  7. Economics Announcement of the latest impact factors from the Journal Citation Reports. Researchers consider a number of factors in deciding where to publish their research, such as journal reputation, readership and community, speed of publication, and citations.

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