We develop a model of elections in proportional (PR) and majoritarian (FPTP) electoral systems. The model allows for an endogenous number of candidates, differentiation of candidates in a private value dimension, or ideology, and a common value dimension, which we interpret broadly as quality....

This paper examines the institutional determinants of discipline in legislative parties. The model formalizes the tradeoff between resources at the leader's discretion, and the leader's need to maintain a minimum level of support to continue leading. The value of the leader's promises of future...

In this paper, we address empirically the trade-offs involved in choosing between bureaucrats and politicians. In order to do this, we map institutions of selection and retention of public officials to the type of public officials they induce. We do this by specifying a collective...

This paper links the theory of interest groups influence over the legislature with that of congressional control over the judiciary. The resulting framework reconciles the theoretical literature of lobbying with the negative available evidence on the impact of lobbying over legislative outcomes,...

This paper links the theory of interest groups influence over the legislature with that of congressional control over the judiciary. We develop a model in which (i) Court’s rulings can be reversed by Congress, and (ii) an Interest Group is privately informed about the realization of a variable...