Heavy is the crown: CEOs' social interactions and layoff decisions / Andrea Bassanini (OECD and IZA), Eve Caroli (LEDA, Université Paris Dauphine, PSL and IZA), Kevin Geay (CESSP, Université Paris 1 Panthéon-Sorbonne), Antoine Reberioux (Université Paris Cité and LADYSS) ; IZA Institute of Labor Economics