enquête (1) secteur des services (1) papier (1) opinion (1) musique (1) marché (1) externalité économique (1) consommation (1) Music (1) Music (1) Stars (1) Revenue sharing (1) Partnership (1) Paper (1) Musicians (1) Music (1) French (1) Finance (1) Fans (1) Determinants (1) Consumers (1) Business enterprises (1) Artists (1) Finance (1) musique (1)