Information aggregation with a continuum of types

摘要

We study the problem of designing a voting rule which makes voting by cut-off strategies efficient for settings where voters have state-dependent common preferences over and vote on accepting or rejecting an issue but hold private information in the form of continuous types about the true state. We show that such rules only exist under a restrictive condition on the model parameters. (C) 2019 Elsevier B.V. All rights reserved.