Wigginton, Michael J.Stockemer, Danielvan Schouwen, Jasmine2019-09-242019-09-242019Wigginton, M., Stockemer, D., & Van Schouwen, J. (n.d.). International Migration and Turnout Bias. PS: Political Science & Politics. doi:10.1017/S104909651900101X1049-0965http://hdl.handle.net/10393/39655https://doi.org/10.20381/ruor-23898Focusing on two commonly used indicators of turnout, VAP turnout (the number of votes cast as a percentage of the population of voting age) and RV turnout (votes cast as a percentage of the number of registered voters), this article discusses possible biases induced by migration flows. Using a global dataset on elections in over 100 democracies between 1990 and 2012, we test the potential bias induced by the percentage of resident non-citizens and nationals living abroad on VAP and RV turnout, respectively. Through time series cross sectional analysis, we find that the number of resident non-citizens does negatively bias VAP turnout, to the extent that a country with 10 percent non-citizen residents would have turnout underreported by nearly 4 percentage points. In contrast, we find that the number of nationals living abroad does not induce a turnout bias.enVAP turnoutRV turnoutmeasurementbiasimmigrationmigrationArticle10.1017/S104909651900101X