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Research institutions in Saudi Arabia are gaming global university rankings by encouraging top researchers to change their main affiliations, sometimes in exchange for cash, and often with little obligation to do meaningful work. That’s the conclusion of a report that shows how, over the past decade, dozens of the world’s most highly cited researchers have switched their primary affiliations to universities in the country. That, in turn, has boosted the standing of Saudi Arabian institutions in university ranking tables, which consider the citation impacts of an institution’s researchers.