We provide a condition for ranking of information systems in agency problems. The condition has a straightforward economic interpretation in terms of the sensitivity of a cumulative distribution with respect to the agent's effort. The criterion is shown to be equivalent to the mean preserving...

We modify the infinitely repeated Cournot game with imperfect monitoring of Green and Porter (1984) and Abreu, Pearce and Stacchetti (1986) to include heterogeneous products and the possibility of balanced budget side payments (Holmstrom 1982). It is shown that a transfer mechanism which induces...