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Barberà, Salvador Berga, Dolors Moreno-Jiménez, Bernardo Nicolò, Antonio 2025-10-17T08:13:26Z 2025-10-17T08:13:26Z 2025-01 Barberà, S., Berga, D., Moreno, B. et al. Weak pairwise justifiability as a common root of Arrow’s and the Gibbard–Satterthwaite theorems. Soc Choice Welf 65, 309–333 (2025). https://hdl.handle.net/10630/40288 10.1007/s00355-024-01575-6 We introduce a novel principle that we call weak pairwise justifiability, which applies to a large class of collective choice rules, including the social choice functions and the social welfare functions about which the Gibbard–Satterthwaite theorem and Arrow’s impossibility theorem are predicated, respectively. We prove that, under appropriate qualifications, our principle is a common root for these two classical results, when applied to rules defined over the full domain of weak preference orders (also for strict). eng http://creativecommons.org/licenses/by-nd/4.0/ open access Attribution-NoDerivatives 4.0 Internacional Elección social Toma de decisiones Weak pairwise justifiability as a common root of Arrow’s and the Gibbard–Satterthwaite theorems journal article