1. Roberto Casarin is Professor, Ca’ Foscari University of Venice, Venice, Italy
2. Radu V. Craiu is Professor, University of Toronto, Toronto, Ontario M5G 1Z5 Canada
3. Lorenzo Frattarolo is Assistant Professor, University of Verona, Verona, Italy and European Commission Joint Research Centre, Ispra, Italy
4. Christian P. Robert is Professor, CEREMADE, Université Paris-Dauphine PSL, Paris, France, and University of Warwick, Coventry, UK