Harvard Election Data Archive: .This archive contains data on election results, voting behavior, and electoral politics, with particular focus on the United States.
Wesleyan Media Project: .Tracks and analyzes all broadcast advertisements aired by or on behalf of federal and state election candidates in every media market in the country, data access.
Birth Order and Voter TurnoutBernt Bratsberg; Christopher T. Dawes; Andreas Kotsadam; Karl-Oskar Lindgren; Richard Öhrvall; Sven Oskarsson; Oddbjørn Raaum (2022)