"The purchasing function is a relational subject, a subject of collaboration far from the predator that strangles its suppliers, it is with these words that Jean-Philippe Denis introduces the interview with Romaric Servajean-Hilst who reports on two articles published in the Revue Française de Gestion.

L'achat Innovation, un acteur d'interface d'Open-Innovation by Sihem Ben Mahmoud, Romaric Servajean-Hilst, Agathe Gilain, Anne Dumas in Revue Française de Gestion 2019/5 (N°282) p 113-130.

Communities, practice landscapes and professional identity of hybrid managers. The case of the buyer-innovation. Sihem Ben Mahmoud-Jouini, Aurore Haas, Benjamin Lehiany, Romaric Servajean-Hilst in Revue Française de Gestion 2020/2 (N°287) p 121-130.