Salary earners and social enterprises : A project studying vocational training and skill-building activities for salaried workers undergoing occupational integration (long-unemployed, unskilled employees, for example) in social enterprises found in four countries: Belgium, France, Spain and Italy. The project has resulted in a cross-border initiative to issue four publications on the basis of the joint title "From integration to professionalisation. What role can the social economy play?": This project started in 2000 and lasted 24 months.