I show that lobbying generates negative externalities, which affect non-lobbying companies. When a piece of new legislation passes in Congress, non-lobbying companies in aggregate lose $1.9bn in market value. I obtain this result using a novel dataset combining comprehensive information on...

I analyse a group contest in which groups decide over two dimensions of membership-exclusivity: whether a member is allowed to join the group at all, and whether this member is allowed to join another group as well. If the prize is mostly private, group leaders do not offer membership in...

We study how political factors can shape competition in the mobile telecommunication sector. We show that the way a government designs the rules of the game has an impact on concentration, competition, and prices. Pro-competition rules reduce prices, but do not hurt the quality of services or...

We study political competition in an environment in which voters have private information about their preferences. Our framework covers models of income taxation, public-goods provision or publicly provided private goods. Politicians are vote-share-maximizers. They can propose any policy that is...

We argue that economic inequality harms social provisions for the poor, but that higher political competition can mitigate this effect. We test this hypothesis using a large redistricting of electoral boundaries in India and find that higher inequality causes more post-neonatal infant deaths,...

This article analyses the dynamics of electoral promises, building on an electoral competition model with endogenous policies. It extends the Grossman-Helpman (1994) model [Grossman G., Helpman E. [1994], "Protection for sale", American Economic Review, 84, 4, 833-850] to include sanctions from...

I consider a model in which an asset owner must decide how much to invest in his asset mindful of the fact that an encroacher's valuation of the asset is increasing in the asset owner's investment. Due to incomplete property rights, the encroacher and asset owner engage in a contest over the...

This paper considers incentives for information acquisition ahead of conflicts. First, we characterize the (unique) equilibrium of the all-pay auction between two players with one-sided asymmetric information where one player has private information about his valuation. Then, we use ou rresults...