This paper studies the selection of information collecting agents by policy makers in the light of two agency problems. First, it is often hard to ascertain how much effort agents have put in acquiring information. Second, when agents have an interest in the policy outcome, they may manipulate...

We investigate information aggregation and competition in a delegationframework. An uninformed principal is unable to perform a task herself andmust choose between one of two biased and imperfectly informed experts. Inthe focal equilibrium, experts exaggerate their biases, anticipating...