Supreme Court justices often vote along ideological lines. Is this due to a genuinely different interpretation of the law, or does it reflect justices' desire to resolve politically charged legal questions in accordance with their personal views? To learn more about the nature of decision-making...

We develop a theoretical framework for equity in council voting games (CVGs). In a CVG, a fully representative voting body delegates decision-making to a subset of the members, as describes, e.g., the United Nations Security Council (UNSC). Three equity concepts are proposed: ex-ante...

Numerous theoretical studies have shown that information aggregation through voting is fragile. We consider a model of information aggregation with vote-contingent payoffs and generically characterize voting behavior in large committees. We use this characterization to identify the set of...

The paper analyzes the appointment of the European Commission as a strategic game between members of the European Parliament and the Council. The focal equilibrium results in Commissioners that duplicate the policy preferences of national Council representatives. Different internal decision...

Interest groups are introduced in a spatial model of electoral competition between two political parties. We show that, by coordinating voting behavior, these interest groups increase the winning set, which is defined as the set of policy platforms for the challenger that will defeat the...

We investigate whether the simple plurality rule aggregates information efficiently in a large election with three alternatives. The environment is the same as in the Condorcet Jury Theorem (Condorcet (1785)). Voters have common preferences that depend on the unknown state of nature, and they...

This paper studies the assignment of decision makers to two committees that make decisions by a simple majority rule. There is an even number of decision makers at each of various skill levels and each committee has an odd number of members. Surprisingly, even with the symmetric assumptions in...

Standard economics omits the role of narratives (the stories that people tell themselves and others) when they make all kinds of decisions. Narratives play a role in understanding the environment; focusing attention; predicting events; motivating action; assigning social roles and identities;...

This paper studies the effects of endogenous party formation on political platforms. It develops a model in which parties allow like-minded citizens to, first, share the cost of running in a public election and, second, coordinate on a policy platform. The paper characterizes the set of...

Does social media or offline social cohesion overcome collective action problems more effectively when both types of networks are prevalent? We investigate non-violent protests against a place-based economic reform in Austria—a country where one in two citizens uses Facebook but also one in...