Research assessments based on journal rankings systematically marginalise knowledge from certain regions and subjects

Many research evaluation systems continue to take a narrow view of excellence, judging the value of work based on the journal in which it is published. Recent research by Diego Chavarro, Ismael Rafols and colleagues shows how such systems underestimate and prove detrimental to the production of research relevant to important social, economic, and environmental issues. These systems also reflect the biases of journal citation databases which...