The paper is concerned with instructions as a way of setting premises for subsequent decisions in models of teams à la Marschak-Radner, under information diversification. The paper suggests that instructions can bridge people's differences in knowledge: they do not require mutual understanding...

If buyers do not observe the quality of a product and production of quality is costly, market allocations can be very inefficient. Certification intermediaries are institutions that provide information about quality to buyers. The amount of information in the market determines the incentives...

Research on risk communication relates basic risk perception studies to the formulation of policies, the currently evolving legislation dealing with hazards, the key issues of public involvement, the risk and environmental management. Risk communication is a relatively new field based on a...

The important role of friends, neighbors and colleagues in shaping individual choices has been brought out in a number of studies over the years. The presence of significant 'local' influence in shaping individual behavior suggests that firms, governments and developmental agencies should...

A model of two-sided market (for credit cards) is introduced and discussed. In this model, agents can join none, one, or more than one platform (multihoming), depending on access prices and the choices made by agents on the opposite market side. Although emerging multihoming patterns are,...

This paper surveys the recent literature devoted to the analysis of the interactions between the adoption of voluntary or negotiated agreements as a tool of environmental policy and market structure. The goal of this survey is twofold. On the one hand, we would like to identify the market...

We study international trade of innovative goods subject to scientific uncertainty on consumers' health effects. Trade of these goods is often at the centre of international disputes. We show that a new trade protectionism may arise because of the scientific uncertainty. A free riding effect is...

The purpose of this article is to analyze how the presence of a competitive fringe, composed by price taker firms, can affect the sustainability of collusive equilibria. Our starting point is that there exists a diffused misunderstanding about its strategical role as collusive minus factor. We...

This report summarises the main ideas, proposals, scientific achievements, consensus and conflicting issues that emerged at the Second EFIEA Policy Workshop, held at Fondazione Eni Enrico Mattei, Palazzo delle Stelline, Corso Magenta 63, Milan, Italy, March 4th-6th, 1999. EFIEA, the European...

In this paper we consider a model with two industrialised countries and immigrants that come from "the rest of the world". The countries are distinguished on the basis of three parameters: population size, bias towards immigrants, and production complementarity between native population and...