Djellal, Faridah; Gallouj, Faïz - In: Revue d'Économie Industrielle 93 (2000) 1, pp. 7-28
[eng] Having been ignored for a long time, innovation in services is now the object of surveys af both the national and international level. The aim of the present article is to review these surveys, which divide up into groups reflecting a range of different theoretical approaches to...