https://www.tandfonline.com/doi/full/10.1080/13510347.2019.1582029?scroll=top&needAccess=true&
https://committees.parliament.uk/publications/40412/documents/197199/default/
https://ecipe.org/wp-content/uploads/2023/10/ECI_23_OccasionalPaper_04-2023_LY06.pdf
https://www.sciencespo.fr/cevipof/sites/sciencespo.fr.cevipof/files/CEPR-DP13103.pdf