Thurner, S.,Deffuant, G.,Carletti, T.
Introduction: An important and significant trend in the field of complex systems, which is currently unfolding: the quest for a quantitative and predictive understanding of socioeconomic phenomena, offering a rich and, to a certain extent, alternative path to traditional social sciences and economics. These efforts in understanding collective phenomena are carried out through novel ways in data analysis, numerical simulations, model building and statistical testing. This topical issue of ACS is devoted to reflect these trends.