Olivier Labussière, CNRS (French National Center for Scientific Research), PACTE – Social Sciences Research Center, Grenoble, France Germain Meulemans, CNRS, Centre Alexandre-Koyré, Aubervilliers, France Céline Granjou, INRAE (National Research Institute for Agriculture, Food and Environment), LESSEM, Grenoble, France Adrien Baysse-Lainé, CNRS, PACTE – Social Sciences Research Center, Grenoble, France Pierre-Olivier Garcia, Université Grenoble Alpes, PACTE – Social Sciences Research Center,Grenoble, France