First Author:   Berangere Legendre Lunven University of Savoie, IREGE berangere.legendre@univ-savoie.fr         Second Author: Najat El Mekkaoui de Freitas Paris Dauphine University, LEDa-DIAL najat.el-mekkaoui@dauphine.fr         Third Author: Gordon Clark Oxford University gordon.clark@ouce.ox.ac.uk