A Strike against the Left: General Strikes and Public Opinion of Incumbent Governments in Spain

Political links between labor unions and leftist political parties have weakened over the last four decades in Western Europe, reducing the former's influence on the latter. Unions' prolonged organizational decline suggests that their capacity to pressure left parties should become more limited. We examine whether unions can use general strikes to influence public opinion when left parties in government pursue austerity policies. Executing a distributive lag time series analysis of quarterly public opinion data from 1986 to 2015 in Spain, we find that Socialist governments incurred significant public opinion penalties in the wake of a general strike. Not only did PSOE prime ministers lose confidence from the public, but they also witnessed a significant reduction in voting intentions. In contrast, Spain's conservative governments incurred no such public opinion penalties in response to general strikes. We conclude that general strikes carry significant political costs for left governments that stray from union ideals.