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POQ Highlight: Do Surveys Overestimate or Underestimate Socioeconomic Differences in Voter Turnout? Evidence from Administrative Registers

06/18/2019

Surveys generally overestimate the overall level of voter turnout in elections due to both the misreporting of voting and nonresponse. Using a register-linked survey with information on the education, occupational social class, income, and voting in the 2015 Finnish parliamentary elections of both respondents and nonrespondents, this study shows that nonresponse bias leads to not only a larger overestimation of the overall level of turnout than social desirability, but also an underestimation of educational, social class, and income-related differences in the propensity to vote.
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