*Stefana Cioban^1,2, Codruta Mare^1,2 (1. **Univ Babes-Bolyai University (BBU), Romania, Faculty of Economics and Business Administration, Statistics-Forecasts-Mathematics Department, 2. **Univ Babes-Bolyai University (BBU), Romania, Interdisciplinary Centre for Data Science)

Giorgio Alleva¹, Giuseppe Arbia², Pietro Demetrio Falorsi⁴, *Vincenzo Nardelli³, Alberto Zuliani⁵ (1. Sapienza University of Rome, 2. Catholic University of the Sacred Heart, Milan, 3. Bicocca University, Milan, 4. Former Director of Methodology at Istat and International Consultant, 5. Emeritus Professor, Sapienza University of Rome)

*Kazufumi Tsuboi¹, Naoya Fujiwara^1,2, Ryo Itoh¹ (1. Tohoku Univ., 2. Univ. Tokyo)