We study the screening problem that arises in a framework where, initially, the agent is privately informed about both the expected production cost and the cost variability and, at a later stage, he learns privately the cost realization. The speci c set of relevant incentive constraints, and so...

This paper investigates how additional ex post private information by the agent affects the equilibrium outcome of the monopolistic screening model. In general, the principal always weakly benefits when the agent receives additional private information after the contracting stage. Instead, both...