What think tanks say about the world’s leaders.
Research that names a president, a prime minister or another head of state or government. 144 titles in the past year, from 37 institutions. Every title links to the institution that wrote it.
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Who counts as a leader comes from Wikidata’s current heads of state and government, plus a few people named as often. A title is matched on the full name, or on a surname we have checked is not an ordinary word. Nothing here is chosen by hand.