Acceptability of mandatory vaccination: A survey experiment on the effects of thresholds and justifications

Juha Ylisalo, Kulha Katariina, Mikko Leino, Rasmus Siren, Lauri Rapeli, Maija Setälä

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Mandatory vaccination mightseem like a straightforward solution for reaching a sufficient vaccine coverage during a pandemic. However, the effectiveness of mandatory vaccination is undermined if the public does not perceive such a compulsory policy as acceptable. We report a population-based survey experiment (n = 1,131), conducted in Finland, that addresses the effects that different ways of framing a mandatory vaccination program have on three outcome variables: (1) the perceived acceptability of the program, (2) the willingness to take the vaccine voluntarily, and (3) the preparedness to refuse the mandatory vaccine. In the 2 × 3 factorial experiment, the respondents were presented with one of three justification alternatives that stressed the benefits of the program for either the economy, health, or basic rights. The justification was accompanied with one of two thresholds for herd immunity (70 or 90 percent). We found that the justification and the threshold for herd immunity interact when it comes to the acceptability of the program and the willingness to take the vaccine voluntarily. Importantly, justifications drawing on health were ineffective at the lower threshold level but very effective when the threshold was high. The preparedness to refuse a mandatory vaccine was low and reacted weakly with the experimental treatments.
Original languageEnglish
JournalPolitical Research Exchange
Volume5
Issue number1
DOIs
Publication statusPublished - 8 Feb 2023
MoE publication typeA1 Journal article-refereed

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