It is shown that any informationally decentralized mechanism that realizes fair allocations over the class of classical pure exchange environments has a message space of dimension no smaller than the number of agents times the number of commodities. Since the equal income Walrasian mechanism, in...

In this paper we review recent advances in financial economics in relation to the measurement of systemic risk. We start by reviewing studies that apply traditional measures of risk to financial institutions. However, the main focus of the review is on studies that use network analysis paying...

Structural changes in an economy or in financial markets can arise as a result of agents adopting rules that appear to be the norm around them. Such rules are adopted by implicit consensus as they turn out to be profitable for individuals. However, as rules develop and spread they may have...

[eng] Organisational structure and networks of interpersonal relations are a central preoccupation for most social scientists. However these aspects of economic activity have received relatively little attention from economists. The idea of this paper is to explain why this is so. The basic...

[fre] On a récemment suggéré que l'expérience du plan Marshall après la guerre pourrait être renouvelée aujourd'hui pour les pays de l'Est. Il semble toutefois, selon des études historiques récentes, que le plan Marshall ait été beaucoup moins efficace qu'on ne l'a prétendu et que...