Dr Estelle Biénabe is an agricultural economics researcher in the Cirad unit “Innovation and Development in agriculture and food ”. Deputy to the General Director for Research and Strategy of Cirad between 2013 and 2016, she is now visiting researcher at Casrad, in Hanoi, Vietnam. She has expertise in value chains and smallholders’ market access in Southern countries and coordinated projects on market transformations linked to large retail dynamics and quality labelling. She very recently edited with A. Rival and D. Loeillet the book “Sustainable development and agri-chains” (Springer, 2016), based on which the theme of the conference was conceived.