The Green Open Access Citation Advantage: Within-Journal Versus Between-Journal Comparisons
Amsciforum 2013-03-10
Summary:
It is only one of Miguel et al’s conclusions – that their between-journal data showing that Green OA journals have higher impact factors than both Gold OA and Gray journals somehow explain or invalidate the many within-journal studies demonstrating that Green OA articles within the same journal have higher citation counts than non-OA articles – that does not follow from the evidence (and cannot follow, methodologically or logically).
Apart from that one point, the Miguel et al article contains informative and useful between-journal data on Green and Gold OA, across fields and geographic areas.