[eng] The service relations and their regulation. . In this article, it is argued that, in order to integrale services into economic thought, we need further elaboration of the relations of service, that is new technical, social and institutional means of narrowing the gap between supply and...

[fre] La linéarité de la frontière du prix des facteurs . . On se propose, dans cet article, d'élucider un point central de la controverse Samuelson-Garegnani concernant la « frontière du prix des facteurs ». Pour P.A. Samuelson en effet (1962), il est possible de présenter une...

[eng] The output of insurance services and its measurement : a critic al analysis. . This article puts forward a critical examination of the related concepts of « output » and « productivity » for insurance services and the corresponding measurement methods, whether for individual companies...