Robust pooling for contracting models with asymmetric information.

•We consider principal-agent contracting models with 1-dimensional continuous types.•Our aim is to design a menu of finitely many contracts by partitioning the types.•For a specific problem we show that core results depend only on a single parameter.•This allows us to analyse the attained performance of any partition scheme.•We compare the performance of the equidistant partition and the optimal partition.