Starting from some regularities of the Boulogne s/mer fish market, the model proposed here shows that in many circumstances the collective behavior may be ‘reasonable’ whereas the individuals may not be so. The properties which are empirically clear at the aggregate level are not necessarily...

This article analyses the influence of trust on the functioning of a market for perishable goods, where there exists no quality signal and quantities can be scarce. On this market, agents can choose between bidding or exchanging through bilateral transactions. It is well accepted in economy that...

This paper presents an overview of how agent-based computational economics (ACE) can contribute to the study of economic systems both at the macro and the micro level. It highlights the way these models can improve our understanding of social interactions and coordination mechanisms and bring...

Basic evidences on non-profit making and other forms of benevolent-based organizations reveal a rough partition of members between somepure consumers of the public good (free-riders) and benevolent individuals (cooperators). We study the relationship between the community size and the level of...

[fre] L'organisme de capital-risque qui a investi dans une jeune entreprise innovante a deux modes de sortie : l'introduction en bourse (marché IPO) et le rachat par une grande firme (M&A). Le marché financier concentre l'attention des professionnels qui ont vu en lui un Eldorado. Sa...

Addressing issues of social diversity, we introduce a model of housing transactions between agents who are heterogeneous in their willingness to pay. A key assumption is that agents' preferences for a location depend on both an intrinsic attractiveness and on the social characteristics of the...

The empirical analysis of fish markets always reveals strong price dispersion for homogeneous or very similar goods. The problem is how to explain this price dispersion on a market where there is no evident arbitrage. Explanations proposed by different authors include differences in...

[eng] Champagne is a product whose quality is difficult to evaluate, even a posteriori, by the consumer. Firms exploit this particularity and invest in reputation either by producing a wine of high quality or by means of public recognition through advertising. Thus, it is optimal for a producer...

We apply a physical-based model to describe the clothes fashion market. Every time a new outlet appears on the market, it can invade the market under certain specific conditions. Hence, the “old” outlet can be completely dominated and disappears. Each creator competes for a finite population...