We analyze an election with costly information acquisition. We compare the outcome of a large election and that of a delegation. We show that the superiority between the two mechanisms is determined by the shape of the marginal cost function.

We consider an axiomatic characterization of the plurality rule, which selects the alternative(s) most preferred by the largest number of individuals. We strengthen the characterization result of Yeh [Yeh, C.-H., 2008. An efficiency characterization of plurality rule in collective choice...