Abstract
We investigate competition in a delegation framework, with a coarsely informed principal.
Two imperfectly informed and biased experts simultaneously propose action choices.
A principal with a diffuse prior, and only being able to ordinally compare the two
proposals, has to choose one of them. The selected expert might receive a bonus payment.
We show that having a second expert benefits the principal, even if the two experts
have the same biases and the bonus of the winner is zero. In contrast with other models
of expertise, in our setting the principal prefers experts with equal rather than
opposite biases. Increasing the bonus brings experts closer to truthful reporting,
but this only benefits the principal up to a threshold level, with further increases
in the bonus strictly decreasing her payoffs. A methodological contribution of our
paper is characterizing restrictions on the set of strategies which allows a formal
generalization of ex ante expected payoffs to games with diffuse prior.
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