In this paper I develop a formal theory of campaign communications. Voters have priors about the quality of candidates' policies in the different policy issues and about the issues’ relative importance. Candidates spend time or money (TV ads, public speeches, etc.) in an effort to influence...

This paper delivers a precise recommendation for how presidential candidates should allocate their resources to maximize the probability of gaining a majority in the Electoral College. A two-candidate, probabilistic-voting model reveals that more resources should be devoted to states which are...

We evaluate how traditional parties may respond to populist parties on issues that are particularly fitting for populist messages. The testing ground is the 2020 Italian referendum on the reduction of members of Parliament. We implement a large-scale field experiment, with almost one million...

Negative advertising is frequent in electoral campaigns, despite its ambiguous effectiveness: negativity may reduce voters' evaluation of the targeted politician but have a backlash effect for the attacker. We study the effect of negative advertising in electoral races with more than two...