This paper is intended to draw the main theoretical lines of the notion of value, in order to avoid some flaws in the quantitative surveys on values as well as in some qualitative studies of value judgements. Through a number of redefinitions based on a pragmatic approach, inspired not only by Dewey’s concept of ‘valuation’ but also by the new French pragmatic sociology and by the pragmatist trend in linguistics, it tries to specify the conditions under which sociology can address the notion of ‘value’ while avoiding their reduction to scholarly supports for morals or normative guides for action and evaluation. Meanwhile, it tries to construct a unified concept of value that would work for all the concerned disciplines: not only sociology but also economics, psychology, anthropology, and even philosophy.

The role and number of intermediaries involved in the process of artistic mediation tend to be all the more important as the art world becomes more autonomous, ruled by specific values, words and actions. This is particularly obvious in the case of contemporary visual arts, as this article demonstrates. The example of a French member of the Nouveaux Réalistes movement helps mapping the various categories of persons, institutions, gestures, objects owing to which a piece of scrap may be offered the career of an authentic artwork. The article concludes by providing a historical explanation of the growing role of intermediaries in modern and contemporary art, and insight into current French cultural policy concerning intermediaries in the visual arts.

Artistic and scientific activities pertain to the world of 'vocation', which demonstrates a close relationship with recognition issues. Referring to recent trends in French, German and American sociology and political philosophy, this article addresses both the status of recognition in present-day sociology and the necessity of prizes in vocational activities. Grounded on two empirical surveys about literary and scientific prizes, it displays the various axiological problems raised by such a mode of recognition, as the 'felicity conditions' of this mode of recognition have to ensure a feeling of justice and avoid envious reactions. On a more theoretical ground, the article aims to demonstrate the necessity for sociology to shift, first, from material to 'symbolic' or, rather, 'intangible' outcomes; second, from a concern with power and domination to a concern with interdependency; and third, from recognition conceived as egalitarian respect to recognition conceived as un-egalitarian esteem.