Though a large literature on the determinants of turnout has flourished, there is scant evidence on the causal impact of turnout on policies implemented in practice. Using data on French municipalities and instrumental variables for turnout based on temperature and influenza variations, we show...

Using a randomized experiment in the context of the 2019 European elections in France, we study how fact-checking affects real sharing of “alternative facts” (false or misleading statements by politicians) on Facebook and the determinants of the decision to view the fact-checking. We expose...

Production of knowledge relies on peer effects and interactions between researchers. However, little is known on how much policies may stimulate these peer effects. In this paper we shed light on this question, and show how a public "research cluster'' policy, which funds local networks of...

Using a nationally representative longitudinal survey of lawyers in the U.S., we document a sizeable gap between men and women in their early aspirations to become law firm partners, despite similar early investments and educational characteristics. This aspiration gap can explain a large part...

Exclusive patents sacrifice product competition to provide firms incentives to innovate. We characterize an alternative mechanism whereby later inventors are allowed to share the patent if they discover within a certain time period of the first innovator. These runner-up patents may reduce the...

Members of groups and organizations often have to decide on rules that regulate their contributions to common tasks. They typically differ in their propensity to contribute and often care about the image they project, in particular want to be perceived by other group members as being high...

We analyze in a two-phase model the optimal mix of ex ante experimentation and ex post learning for the dynamic adoption of activities with uncertain payoffs. In a first pre-introduction phase, costly experimentation is undertaken to decide whether to adopt the activity or abandon...

How effective is fact checking in countervailing "alternative facts,'' i.e., misleading statements by politicians? In a randomized online experiment during the 2017 French presidential election campaign, we subjected subgroups of 2480 French voters to alternative facts by the extreme-right...

How do radical reforms of the state shape economic development over time? In 1790, France’s first Constituent Assembly overhauled the kingdom’s organization to set up new administrative entities and local capitals. In a subset of departments, new capitals were chosen quasi-randomly as the...