In models of sequential decision making herd behaviour occurs if the signals smart(dumb) agents receive are (un)correlated and if agents have reputational concerns. We show thatintroducing costly effort to become informed about project payoffs (i) eliminates herdbehaviour and (ii) shifts...

We study committees that acquire information, deliberate and vote. A member cares about state-dependent decision payoffs and about his reputation for expertise. The state remains unobserved, even after the decision has been taken. In such inconclusive environments, in equilibrium, a member's...

This paper is concerned with the role of committees in collective decision-makingprocesses in a world where agents must be motivated to collect information. Committees improvethe quality of decision-making by providing information and by coordinating the collection ofinformation. We address two...

A well-known rationale for representative democracy is that direct democracy leads to a free-rider problem as to the collection of information. A problem with this rationale is that it takes for granted that representatives collect information. In this paper we examine whether or not electoral...

We study a model of collective decision making with endogenous information collection.Agents collect information about the consequences of a project, communicate, and then vote onthe project. We examine under what conditions communication may increase the probability thatgood decisions are made....