Publishing & peer review
Guidelines for handling competing interests when reviewers have prior collaboration history with authors.
Collaboration history between authors and reviewers complicates judgments; this guide outlines transparent procedures, risk assessment, and restorative steps to maintain fairness, trust, and methodological integrity.
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Published by Gregory Brown
July 31, 2025 - 3 min Read
When editors confront potential conflicts arising from prior collaboration between a reviewer and an author, the first imperative is explicit disclosure. Journals should provide clear avenues for reviewers to declare any overlaps, including recent co-authorship, shared funding, or long-standing professional ties. Editorial staff must document these disclosures promptly and assess their potential influence on objectivity. A red flags checklist helps standardize this process, including the nature of the relationship, its recency, and the potential for bias in interpretation. Transparent recording supports accountability and enables subsequent decisions to be guided by documented risk considerations rather than ad hoc judgments.
Beyond disclosure, editors may appoint alternative reviewers with fresh perspectives when a conflict is judged significant. This strategy preserves the integrity of the review process while avoiding suspicion of partiality. In practice, a diverse pool of reviewers who have no recent collaboration with any author in the manuscript reduces the chance of undisclosed incentives shaping outcomes. Editors should communicate the rationale for choosing a non-conflicted reviewer, including how expertise is preserved. Documentation should capture the decision criteria, the expected impact on timelines, and the steps taken to monitor fairness throughout the evaluation.
Policies should balance transparency with protection for all parties involved.
The ethical backbone of handling competing interests rests on consistent application of policy, not on topic prestige or personal assurances. Institutions and journals should align their guidelines with recognized standards from professional bodies, thereby normalizing expectations across fields. When a potential bias is identified, editors must weigh factors such as the reviewer’s familiarity with the literature, the depth of prior collaboration, and the possibility that the reviewer could overlook methodological flaws. A principled approach emphasizes restraint, transparency, and the willingness to seek secondary opinions if doubts persist, ensuring that conclusions about the manuscript are driven by evidence.
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Equally important is the protection of authors from reputational harm when disclosures reveal conflicts. Authors deserve assurances that their work will be judged on its merits rather than on personal associations. To this end, journals should provide a public-facing summary of the decision process, while preserving reviewer anonymity as appropriate. Ensuring that the review workflow remains predictable helps authors plan for revisions without tension. In addition, clear timelines, escalation paths for unresolved concerns, and ongoing audits of decision quality contribute to sustainable trust in the publication system, especially in high-stakes or highly specialized areas.
Structured risk scoring fosters consistency and public confidence.
A practical method is to publish a brief statement in the manuscript record describing the nature of any conflict and the reviewers involved, when appropriate. This practice signals accountability without disclosing sensitive details that might harm privacy. Authors can be invited to acknowledge the process in the cover letter, reinforcing their confidence that the evaluation will be objective. Journals should also invest in training editors to recognize subtler forms of bias, such as appetite for reciprocal praise or dampened critique when familiar faces participate. Regular policy reviews help keep procedures aligned with evolving norms around openness, reproducibility, and fairness.
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To support consistent decision-making, journals can implement a formal bias-risk scoring system. Each potential conflict receives a calibrated rating that informs reviewer selection and adjudication. The scoring framework should consider recency, scope of collaboration, and the potential influence on specific methodological choices or statistical interpretations. Decisions based on these scores should be reviewed by a senior editor or an independent committee to avoid unilateral judgments. The aim is to reduce ambiguity so that readers and authors trust that the review process remains rigorous, balanced, and free from hidden incentives.
Open dialogue and multi-person review strengthen impartiality.
When conflicts arise, it is crucial to define what constitutes a “significant” overlap. Not all connections carry equal weight; a long-ago collaboration in a different topic may be less problematic than ongoing co-authorship on a closely related project. Journals can articulate tiers of concern, mapping each tier to recommended actions such as additional independent reviews, method-focused evaluations, or temporary suspensions of certain reviewer roles. Clear delineation helps editors apply the policy uniformly. It also provides a transparent rationale for readers who wonder why a particular reviewer was or was not selected, thereby reinforcing credibility across disciplines.
Another safeguard is to promote a culture of open dialogue between editors and reviewers. When possible, editors should discuss potential biases directly with the reviewer, inviting self-reflection about how ties might color judgments. This conversation should remain professional and succinct, documenting any commitments the reviewer makes to abide by objective criteria. Such exchanges reduce the chance of misinterpretation and encourage ongoing integrity. In instances where concerns persist, editors should default to third-party evaluations, ensuring that conclusions reflect a broad consensus rather than a single subjective view.
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Continuous evaluation ensures enduring integrity of the review process.
For authors, proactive engagement with the journal about competing interests can accelerate resolution. Authors should furnish a concise description of relationships that could influence the evaluation, including past collaborations, advisory roles, or co-funding arrangements. Providing this information early allows editors to integrate it into the review plan, reducing last-minute surprises that might derail progress. When appropriate, authors may suggest alternative reviewers who meet the policy criteria, though the final selection remains the editors’ responsibility. This collaborative approach helps preserve trust and demonstrates a commitment to rigorous and fair assessment.
Journals also benefit from ongoing monitoring of outcomes tied to conflict-management practices. Data on reviewer agreement rates, revision timelines, and post-publication critiques can reveal whether policies are functioning as intended. If patterns indicate recurring concerns about bias or delays, editors should revisit screening procedures, updating definitions of conflict or adjusting reviewer pools. Continuous quality improvement ensures that the system remains robust as research landscapes evolve and collaborations become more interconnected across institutions and nations.
Finally, institutions and funders can reinforce best practices by recognizing the complexity of conflicts in peer review. Training programs for editors, transparent reporting on handling of competing interests, and incentives aligned with ethical standards can collectively reduce tensions that arise from close professional ties. When the community observes that conflicts are treated with seriousness and accountability, confidence in published findings grows. The reinforcing message is that scientific progress depends on fair adjudication, independent verification, and processes that safeguard the trust readers place in scholarly work.
By embedding these elements into routine editorial workflows, journals can navigate the challenges of prior collaboration with clarity and fairness. The emphasis remains on transparency, proportional remedies, and a willingness to adjust procedures as circumstances change. Researchers, reviewers, and editors all benefit from a system that values rigorous method, open communication, and consistent application of policy. In the end, the goal is to uphold the integrity of science, ensuring that conclusions stand on evidence rather than personal connections, while sustaining momentum for important discoveries across fields.
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