How does labour market disadvantage translate into political behaviour? Bringing together the literatures on political alienation, redistribution preferences and insider-outsider politics, we identify three mechanisms by which labour market disadvantages influence voting behaviour. Disadvantages can increase support for redistribution, reduce internal political efficacy or lower external political efficacy. This translates into support for pro-redistribution parties, vote abstention or support for protest parties. Using the Dutch LISS survey, we observe a twin effect of increased support for redistribution and decreased external efficacy. Mediated through redistributive preferences, we find a positive effect of labour market disadvantage on voting for left parties. Mediated through external efficacy we find a positive effect of labour market disadvantage on protest voting. In contrast, we do not find any effect of labour market disadvantage on internal efficacy. Hence, the observed effect of labour market disadvantage on political abstention is entirely mediated by external efficac
