LAUSR

Given the recent surge of global populism, this article explores the relationship between Internet/social media and support for populist parties by focusing on the structure of the online marketplace. We argue that structure shapes digital networks’ incentives in terms of the content they favor, and marketing strategies they employ to distribute content on a mass scale. Specifically, concentrated/oligopolistic markets mean powerful digital entities that can leverage the regulatory process—thereby weakening constraints and incentivizing consumption/profit above all else. Consequently, these entities can freely favor more incendiary/attention-generating content, and use their outsized influence to saturate the online marketplace with targeted advertising—all of which can amplify the diffusion of populist rhetoric and intensify support bases. Using original data on Internet ownership concentration, social media user-traffic, and populist party vote share in 34 democracies, our findings suggest that concentration of Internet ownership and online audiences each contribute to rising support for populism.