À propos de deux questions concernant le concept de patrimoine : de quels éléments se compose un patrimoine et quels en sont les titulaires possibles ?

Varying contributions show evidence that it is not possible to understand what a patrimony is from the concepts of public goods and/or externalities as they are thought in the ordinary approach of economy when treating about non-marketable by contrast, that is to say from the market. Two questions remain notably without any precise answer : witch elements make a patrimony and who are the potential owners (titularies) ? It is possible to answer when starting from the concept of activity. Without deep analysis and excluding natural patrimony, we show that a social patrimony is made of free resources (resources-externalities and free products) and that the territory and the organisation are the two types of social structure owning a social patrimony.