“…It is one of the more consistent findings in the literature that the closeness of an election, often measured as the distance in vote shares between the first and the runner-up party, boosts turnout (see Blais, 2000, for an extensive overview). It is a straightforward prediction of rational choice theory that people face higher incentives to vote when the outcome of an election is close, and this is indeed what others have found at the national (e.g., Pattie and Johnston, 2001;Clarke et al, 2006), the constituency (Denver and Hands, 1974;Franklin, 2004;Loewen and Blais, 2006), and the individual level (Vowles, Katz and Stevens, 2017), although the effects tend to be fairly small. 5 It is not entirely clear a priori whether voters use knowledge from the previous election or take current polls into consideration to anticipate the closeness in the current election.…”