Plagiarism is the copying of ideas, text, data and other creative work (e.g. tables, figures and graphs) and presenting it as original research without proper citation. Separate from the issue of plagiarism is the need for authors to obtain permission to reuse previously published work (even if properly cited) from the holder of the copyright (which is typically not the author)
While following these broad principles, authors should recognize the following guidelines:
1) Plagiarism covers the use of ideas that have been presented in prior work, regardless of whether the ideas are expressed using the same words, tables or graphics.
2) Word for word copying of the work by others must be clearly identified. Short segments (a few words to one or two sentences) must be put in quotes or italicized; longer segments (e.g. a paragraph) should be indented or italicized. In both cases, the quoted work has to be followed by a citation, this may be a URL. This does not apply to casual phrases that do not convey original content (e.g. “This paper makes the following contributions”). Extensive copying of the work of others, even if clearly indicated, is generally not allowed.
3) More extensive word-for-word copying of one’s own work is permitted (with permission from the holder of any copyright), but this must be clearly indicated in the article. This does not apply to previous documents such as working papers and theses which were written as part of the research. If an entire section is copied from another source (co-authored by at least one author of the submitted paper).
4) Proper attribution of an idea is required even if a journal operates with double-blind review. Authors should always cite related work even if that work is their own, even if the journal has double blind review. If an author is concerned that such citation would reveal their identity, thereby circumventing the double blind process, they should nevertheless include a “blinded” citation in the manuscript, i.e., a citation that does not include their name, and explain to the journal’s editor how, if the paper is accepted for publication, that citation will be changed for the final version.
5) The first paper in which a creative contribution occurs (text, ideas, analysis) gets the credit for the contribution, even if it has not yet been accepted for publication. Subsequent papers (by the same or different authors), are expected to cite the first paper (even if it is under review).
If plagiarism is detected during the peer review process, the manuscript may be rejected. If plagiarism is detected after publication, we may issue a correction or retract the paper, as appropriate.