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...

When hiring an adviser (he), a policy maker (she) often faces the problem that she has incomplete information about his preferences. Some advisers are good, in the sense that their preferences are closely aligned to the policy maker's preferences, and some advisers are bad. Recently, some...