FABIO ODDI PhD Student PhD program:: XXXVIII email: oddi@diag.uniroma1.it supervisor: Vito Trianni co-supervisor: Daniele Nardi Research products 11573/1664347 - 2022 - Best-of-N Collective Decisions on a Hierarchy (02a Capitolo o Articolo) FABIO ODDI, ANDREA CRISTOFARO