A few days ago I was browsing open-access social-science journals and I found one ‘author guideline’ explicitly saying that they are accepting student submissions if and only if the manuscript is co-authored with the academic advisor or a senior researcher.
I have acquaintances with several editors and editorial board members at various journals and I know from experience that some of us tends to be careful with manuscripts coming from PhD students. This manifests in practices that I find questionable (e.g., insisting on three unanimously positive specialist peer evaluations before acceptance, while a senior researcher’s manuscript may go with only two positives) and in other practices that I find to be biased (like an easier desk reject, or being less willing to deal with them, which results in longer peer evaluation cycles).
Is it justifiable for editors to restrict – formally or informally – the opportunities for PhD students to publish in their journals, like restricting them to submit only co-authored papers or subject their manuscript to more strict criteria than those of senior researchers before acceptance?