We extend Armstrong's (1996) result on exclusion in multi-dimensional screening models in two key ways, providing support for the view that this result is quite generic and applicable to many different markets. First, we relax the strong technical assumptions he imposed on preferences and...

In this paper we consider a model where a risk-neutral principal devises a contract for a risk neutral agent who can exert effort along different dimensions. On the top of that the agent possesses multidimensional private information about her cost of effort. We show that as long as effort is...

In this paper I take a dynamic point of view and give an example of a population game and of a locally improving stochastic learning process such that the quantal response equilibrium assigns to the different strategies the probabilities that are non-monotone in the payoffs. Moreover, if the...