New study: "Journals published in Europe, Oceania and North America were more likely to be indexed in #Scopus and #WebOfScience compared to other world regions. Journals published in sub-Saharan #Africa were the most underrepresented and were four times less likely to be indexed than those published in #Europe."
https://link.springer.com/article/10.1007/s11192-024-04948-x

PS: I'm sorry that this comparison did not include @OpenAlex (#OpenAlex).