This paper analyses Rawls's celebrated difference principle, and its lexicographic extension, in societies with a finite and an infinite number of agents. A unified framework of analysis is set up, which allows one to characterise Rawlsian egalitarian principles by means of a weaker version of a...

For many governments, enacting green policies is a priority, but such policies often impose on citizens substantial and uneven costs. How does the introduction of green policies a?ect voting? We study this question in the context of a major ban on polluting cars introduced in Milan, which was...

A Hard Problem is a collective choice problem in which the only feasible alternatives apart from the status quo consist of a welfare gain to some people (the Winners) and a welfare loss to the others (the Losers). These problems are typical in a number of settings, such as climate action,...

Do strong states affect the culture and actions of their citizens in a persistent way? And if so, can the capacity to tax, by itself, drive this effect? I study how the historical capacity of a state to collect taxes affects the decision of citizens to evade the mandatory military draft. I look...

This paper examines the role of simplified heuristics in the formation of preferences for public goods. Political scientists have suggested that voters use simplified heuristics based on the positions of familiar parties to infer how a proposed policy will affect them and to cast a vote in line...

We study political dynasties in the United States Congress since its inception in 1789. We document patterns in the evolution and profile of political dynasties, study the self-perpetuation of political elites, and analyze the connection between political dynasties and political competition. We...

In this short paper we provide two versions of Arrow’s impossibility theorem, in a world with only one preference profile. Both versions are extremely simple and allow a transparent understanding of Arrow’s theorem. The first version assumes a two-agent society; the second version, which is...

In this paper we provide a simple new version of Arrow’s impossibility theorem, in a world with only one preference profile. This theorem relies on a new assumption of preference diversity, and we explore alternative notions of preference diversity at length.

We study the classic implementation problem under the behavioral assumption that agents myopically adjust their actions in the direction of better-responses within a given institution. We offer results both under complete and incomplete information. First, we show that a necessary condition for...

Alchian and Demsetz’s (1972) influential explanation of the classical business firm argues that there is need for a concentrated residual claim in the hands of a central agent, to motivate the monitoring of workers. We model monitoring as a way to transform team production from a collective...