This work deals with the main theories about the "pragmatic turn" of jurisprudence advocated by American judge Richard Posner.Then it shows that a pragmatic theory and the constitutional imperative of impartial adjudications are incompatible.Finally, it lays the foundations of a theory of adjudication, which, without being strictly consenquentialist, compromises the practical reason of the judge in terms of the reasonable demands of social change.
