Some committees are made up of experts, persons who care both about the matter at hand and about coming across as able decision makers. We show that such committees would like to conceal disagreement from the public. That is, once the decision has been reached, they show a united front to the...

Democracies delegate substantial decision power to politicians. Using a model in which an incumbent can design, examine and implement public policies, we show that examination takes place in spite of, rather than thanks to, elections. Elections are needed as a carrot and a stick to motivate...

Collective decision procedures should balance the incentives they provide to acquire information and their capacity to aggregate private information. In a decision problem in which a project can be accepted or rejected once information about its quality has been acquired or not, we compare the...

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 that introducing costly effort to become informed about project payoffs (i) eliminates herd behaviour and (ii) shifts...

Decision-makers can benefit from the experience of others with solutions to common problems. If a best practice exists, the challenge is to recognize it and to ensure its diffusion. Information about different solutions is often dispersed, and decision-makers may be reluctant to switch for...

A committee makes a decision on a project on behalf of "the public." Members of the committee agree on the a priori value of the project, and hold additional private information about its consequences. They are experts who care about the value of the project and about being considered well...

This article analyzes under which conditions a manager can motivate a junior worker by verbal communication, and explains why communication is often tied up with organizational choices as job enlargement and collaboration. Our model has two important features. First, the manager has more...

We study two aspects of globalization. It allows a decision-maker to go beyond his own local experience and to learn from other decision-makers in addressing common problems. This improves the identification and diffusion of best practices. It also provides extra information to `markets' that...

Transparent decision-making processes are widely regarded as a prerequisite for the working of a representative democracy. It facilitates accountability, and citizens may suspect that decisions, if taken behind closed doors, do not promote their interests. Why else the secrecy? We provide a...