This article reviews recent developments in the theory of committee decision-making. A committee consists of self-interested members who make a public decision by aggregating imperfect information dispersed among them according to a pre-specified decision rule. We focus on costly information...

In a market with heterogeneous individuals, the fact that a particular group of individuals are the consumers of a particular product already indicates that there exist systematic differences between them and the average person. Simple tools from statistical theory are used here to analyze the...

The Employees Retraining Programme in Hong Kong was promoted as the solution to structural unemployment resulting from rapid transformation of the economy. However, our study of the labour market performance of a group of trainees shows no evidence of any positive programme effect, more than...