Your feature on sharing laboratory materials (Nature 625, 841–843; 2024) cites evidence for an open-access citation advantage dating back to 2006 (G. Eysenbach PLoS Biol. 4, e157; 2006). There might be many compelling arguments for open-access publishing for the benefit of science and scholarship, but there is currently little firm evidence that a citation advantage is one of them.
Competing Interests
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A.P. is employed at Elsevier, a major publisher of scientific and scholarly journals and books (including open-access publications).