I study a multi-sender signaling game between an uninformed decision maker and two senders with common private information and conflicting interests. Senders can misreport information at a cost that is tied to the size of the misrepresentation. The main results concern the amount of information...

This paper studies the tax treatment of couples. We develop two different approaches. One is tailored to the analysis of tax systems that stick to the principle that the tax base for couples is the sum of their incomes. One is tailored to the analysis of reforms toward individual taxation. We...

Are reforms towards individual taxation politically feasible? Are they desirable from a welfare perspective? We develop a method to answer such questions and apply it to the US federal income tax since the 1960s. Main findings are: As of today, Pareto-improvements require a move away from joint...

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...

This paper studies a contest in which players with unobservable types may form an alliance in a pre-stage of the game to join their forces and compete for a prize. We characterize the pure strategy equilibria of this game of incomplete information. We show that if the formation of an alliance is...

We present a conceptual framework for the analysis of politically feasible tax reforms. First, we prove a median voter theorem for monotonic reforms of non-linear tax systems. This yields a characterization of reforms that are preferred by a majority of individuals over the status quo and hence...

I analyze how boards of directors with heterogeneous preferences can affect the information shared with the CEO with the help of a cheap-talk model that allows for large groups of receivers. This paper provides new insights on how heterogeneity of boards can change the way of communication...

This study investigates under what circumstances there exist a separating equilibrium in which competent leaders choose incompetent co-workers and incompetent leaders choose competent co-workers. The driving force for the competent leader is the insurance motive; if things go wrong he can blame...

Consider team production with two people. Each is characterized by a prior distribution that he will do Right or Wrong. After the outcome of the project is observed, these probabilities are updated. When output depends on the weakest link in production, following project failure the posterior...