The global perspectives adopted in this volume by the authors, from different academic disciplines and social experiences, ought not to be locked in sterile linearity which within process of globalisation would fail to perceive, the irreversible opening up of the worlds of the south. There is the need within the framework of the analyses presented here, to quite cogently define the sense of the notion of the market. The market here does not refer to saving or the localised exchange of goods, a perspective which is imposed by normative perceptions. In fact, a strictly materialistic reading of exchange would be included, since every social practice and interaction implies a communitarian transaction; meanwhile the exchange system under study here broadens to root out the obligation of the maximisation of mercantile profit from the cycle of exchange. Trade here would have a meaning closer to those of old, one of human interaction, in a way that one could also refer to "bon commerce"...