An additional defense of strong Condorcet consistency, with Salvador Barberà, Bernardo Moreno, and Antonio Nicolò. October 2022. A complete proof that Arrow and Gibbard-Satterthwaite theorems have a common root, with Salvador Barberà, Bernardo Moreno, and Antonio Nicolò. July 2022. Impartial Social Rankings: Some impossibility results, with Jorge Alcalde-Unzu and Riste Gjorgjiev. March 2022. Ex post group incentive compatibility in single-unit auctions, with Bernardo Moreno. June 2020. Preferences-based and type-based rules: When do they coincide?, with Salvador Barberà, Bernardo Moreno, Antonio Nicolò. November 2021.