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People who strongly identify with their Covid vaccine status discriminate more strongly against the respective other group. This is shown by a study conducted by the team around Luca Henkel, member of the Cluster of Excellence ECONtribute at the University of Bonn, with the participation of the Universities of Erfurt and Vienna and the Bernhard Nocht Institute for Tropical Medicine Hamburg. The study was published in the journal Nature Human Behaviour.
The researchers analyzed the extent to which participants defined themselves by their status as vaccinated or unvaccinated and how they perceived the other group. The result: The more participants identified themselves as vaccinated or unvaccinated, the more likely they were to distance themselves from the other group.
The team surveyed more than 3000 vaccinated and 2000 unvaccinated people from Germany and Austria from December 2021 to July 2022. They had to rate on a scale of one to seven how strongly they agreed with five different statements about their vaccination status. For example, from both groups, about half of the respondents said they were proud to be (un)vaccinated. In the second step, the participants were given 100 euros to divide between themselves and another person. They learned in advance whether their counterpart was vaccinated or unvaccinated. If the person belonged to a different group than themselves, the person handing out the money discriminated more strongly and gave significantly less. For example, vaccinated people gave an average of 48 euros to other vaccinated people, but only 30 euros to unvaccinated people.
Unvaccinated are more likely to feel socially excluded
In general, unvaccinated people perceived the public debate on compulsory vaccination as more unfair and said they experienced more social exclusion. The study provides evidence for the theory reported in the literature that conflicts are promoted the more people identify with a social group, because they see their own conviction as the right one and feel morally superior. For example, the study shows that the more unvaccinated people identify with their vaccination status, the more willing they are to demonstrate against Covid-19 measures.
Vaccination as an ideological rather than purely health-related decision
"We show that getting vaccinated against Covid-19 has become not just a health decision, but also an ideological value decision," Henkel says. Respondents not only identified themselves individually as vaccinated or unvaccinated, but also see themselves as part of a social group. Conventional information campaigns are therefore not very effective. "We need more exchange instead of one-sided appeals," Henkel said. The researchers see it as the duty of public figures, for example, to advocate for a stronger dialogue.
ECONtribute: The only Cluster of Excellence in economics
The study was conducted in part within the scope of ECONtribute. ECONtribute is the only Cluster of Excellence in economics that is funded by the German Research Foundation and a joint initiative of the universities of Bonn and Cologne. The Cluster’s research focuses on markets at the interface between business, politics and society. The Cluster aims to advance a new paradigm for the analysis of market failure in light of fundamental societal, technological and economic challenges, such as increasing inequality and political polarization or global financial crises.
Other funding bodies: Universities of Erfurt and Vienna, and the Thuringian State Chancellery.
Content contact:
Luca Henkel
ECONtribute, Universität Bonn
luca.henkel@uni-bonn.de
Press and communication:
Carolin Jackermeier
PR Manager ECONtribute
+49 221 470 7258
carolin.jackermeier@uni-bonn.de
Luca Henkel, Philipp Sprengholz, Lars Korn, Cornelia Betsch, and Robert Böhm: The association between vaccination status identification and societal polarization. Nature Human Behaviour; https://doi.org/10.1038/s41562-022-01469-6
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