The document summarises the results of twenty years of coordination of research programmes on urban food supply in Africa and Asia in collaboration with national researchers. The main research questions are the following ones: What is the role of geographical and relational proximity in the...

This paper analyzes competitive pricing policies by multiproduct firms facing heterogeneous buying patterns. We show that cross-subsidization arises when firms have comparative advantages on different products but are equally efficient overall: Firms earn a profit from multi-stop shoppers by...

In a process of world economic domination by an agro-industrial and agro-tertiary food system, the author wonders about the feasibility of an alternative model. The intensive agro-industrial model (financiarized, concentrated, specialized and globalized), allows remarkable results in terms of...

It was the title chosen in January 2004 for the 12 pages of the "Agreste" restitution of the primary results obtained through this second investigation, to the partners and interviewed firms, which was intended to question the evolutions of the regional agro-food sphere over 5 years (1998-2003)....

The question of how information and communications technologies impact the economic development of businesses has come to the fore in recent years with the emergence of what have been called "platforms for collaborative working" or simply "collaborative platforms". This technological development...