Replication Data for: Cross-National Social Influence: How Foreign Votes Can Affect Domestic Public Opinion

Do voters follow the preferences of foreign mass collectives? Despite the growing research on policy diffusion and theoretical debates on the emergence of transnational public spheres, we know little about the impact of foreign votes on domestic public opinion. Yet, the results of elections and referendums may provide a signal to people in other countries and trigger a process of contagion. This study leverages the coincidence of the 2005 French referendum on the European Constitution and the fieldwork of two surveys to analyze the causal effect of cross-national social influence. Results show that the French rejection increased public opposition to the Constitution abroad. A process of cognitive activation explains why knowledgeable voters also grew Eurosceptic after the vote. These findings attest to the interdependence of national publics and contribute to our understanding of mechanisms of social contagion.