G. Branca et al.,  "Are consumers actually willing to pay more for sustainable packaging?: A choice-based conjoint analysis", in Proc. of the XIX SIM Conf. “Next Generation Marketing. Place, People, Planet: cooperation & shared value for a new era of critical marketing, M.T. Cuomo, G. Metallo, G. Festa, A. Giordano, Ed., Salerno, Italy, Società Italiana Marketing, 2022