https://www.confindustria.it/notizie/dettaglio-notizie/lettera-Confindustria-Medef-ai-presidenti-di-Italia-e-Francia
https://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.34.2.172
https://ukandeu.ac.uk/explainers/eu-switzerland-negotiations-agreement/?mc_cid=1b270f9c56&mc_eid=815b1928ec