Predatory Publishing

Predatory publishing is a business model in which publishers prioritize revenue generation over scholarly quality and integrity, charging authors article processing fees while providing inadequate or nonexistent peer review, editorial oversight, and indexing services. These publishers exploit the open access publishing model by mimicking legitimate journals while failing to provide the quality control mechanisms that define credible academic publishing. A 2019 international consensus (Grudniewicz and colleagues, Nature) defined predatory journals and publishers as entities that prioritize self interest at the expense of scholarship and are characterized by false or misleading information, deviation from best editorial and publication practices, a lack of transparency, and/or aggressive and indiscriminate solicitation. That definition rests on deception and poor practice, not on whether a journal charges authors a fee.

Predatory journals pose a serious threat to the integrity of the scientific record. Research published without genuine peer review may contain methodological errors, fabricated data, or unsupported conclusions that become part of the citable literature. When these papers are cited in systematic reviews, clinical guidelines, or policy documents, they can distort evidence based decision making. Early career researchers are particularly vulnerable to predatory publishers, as the pressure to publish may lead them to submit to journals that promise rapid acceptance. The proliferation of predatory journals also undermines public trust in open access publishing, a model that was designed to increase access to knowledge rather than to exploit authors financially.

Predatory publishers typically solicit manuscripts through mass email campaigns, often personalized with the researcher's name and recent publications to create the appearance of a targeted invitation. They promise rapid peer review (sometimes within days) and guaranteed acceptance for a fee. The peer review provided, if any, is superficial and fails to identify substantive methodological problems.

Warning signs of predatory journals include aggressive solicitation emails, editorial boards composed of individuals who did not agree to serve or whose credentials cannot be verified, journal names that closely imitate well known legitimate journals, promises of unrealistically fast peer review, lack of indexing in recognized databases such as PubMed, Scopus, or Web of Science, misleading claims about indexing or metrics (such as an impact factor that cannot be found in Journal Citation Reports), unclear or missing information about editorial policies and retraction procedures, and contact addresses that do not correspond to a verifiable institution.

Several resources help researchers evaluate journals before submitting. The Think. Check. Submit. checklist provides a structured decision making framework. The Directory of Open Access Journals (DOAJ) maintains a curated list of legitimate open access journals that meet quality standards. Checking whether a journal is indexed in major databases and whether its impact factor appears in the Journal Citation Reports can also help distinguish legitimate from predatory outlets. No single check is conclusive: some predatory journals have been found in Scopus, and PubMed also lists articles deposited in PubMed Central under funder policies, whichever journal published them.

For systematic review teams, predatory publications present a particular challenge. Including studies from predatory journals risks introducing poorly vetted evidence into the synthesis. Some review protocols now explicitly exclude studies from journals not indexed in recognized databases, though this criterion alone is imperfect because new legitimate journals may not yet be indexed.

The concept of predatory publishing is relevant whenever researchers are selecting a journal for submission, evaluating the credibility of published studies, or screening literature for inclusion in evidence synthesis. Researchers should apply journal quality checks at every submission decision and train junior colleagues and graduate students to recognize warning signs. Institutions should provide guidance on avoiding predatory outlets and on checking a journal's practices.

A common mistake is assuming that a journal is legitimate because it has a professional looking website or because a colleague published there. Predatory publishers can create websites that are hard to tell apart from those of reputable journals. Another error is confusing predatory journals with legitimate but lower tier journals; not every unknown journal is predatory, and hasty accusations can harm legitimate new publications. Some researchers assume that paying an article processing charge automatically means the journal is predatory, conflating the open access business model with predatory practices. Finally, once a paper is published in a predatory journal, some researchers fail to recognize that the paper carries diminished credibility and continue to list it on their CV without disclosure.

A biomedical researcher receives an email from a journal he has never heard of, whose title closely resembles that of a well known clinical journal, praising his recent conference presentation and inviting a full manuscript submission with a guaranteed two week review process and a $1,200 publication fee. The researcher checks and discovers that the journal is not listed in PubMed, Scopus, or DOAJ, the editorial board includes names with no verifiable academic affiliations, and the journal's archive shows dozens of papers published per week with no apparent thematic coherence. He declines the invitation and submits to a DOAJ listed journal instead.