When is a Reminder Enough? Text Message Voter Mobilization in a European Context

Abstract

Abstract Sending text messages reminding people to vote has only been examined as a mobilization tool in three studies, two of them done in the United States. The results from these studies are mixed. We investigate this tool’s effectiveness using a field experiment in a different context, municipal elections in Norway. We find strong mobilization effects among groups traditionally low in participation (immigrants and youth voters). Young native Norwegians show an intent-to-treat (ITT) effect of 4.58% points, foreign nationals who have recently established Norwegian residency show an ITT effect of 2.93% points, and among immigrants who have lived in Norway for 7 years or more the treatment effect is 2.7% points. Even among native Norwegian voters over 30, with a baseline turnout of 73%, text messages generate a 0.96% points increase in turnout.