Are young people less likely to punish undemocratic behaviour? I employ experimental data from five studies, ten countries, and seventeen unique country-year samples to reassess the proposition that young people are less committed to democracy than older people. The studies consist of four conjoint and one vignette experiments, which permit estimating an interaction between undemocratic candidate behaviour and respondent age on voting intentions. I find the interaction between undemocratic behaviour and age is negative – such that punishment of undemocratic behaviour increases with age – in all studies and almost all country samples. Moreover, the interaction is approximately linear and statistically significant in the pooled sample and most studies. Thus, young people are less likely to sanction undemocratic behaviour than older people. This letter contributes with the hitherto most comprehensive empirical contribution on age differences in commitment to democracy judging from punishment of undemocratic behaviour.
