RT Journal Article T1 Weak pairwise justifiability as a common root of Arrow’s and the Gibbard–Satterthwaite theorems A1 Barberà, Salvador A1 Berga, Dolors A1 Moreno-Jiménez, Bernardo A1 Nicolò, Antonio K1 Elección social K1 Toma de decisiones AB 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). PB Springer YR 2025 FD 2025-01 LK https://hdl.handle.net/10630/40288 UL https://hdl.handle.net/10630/40288 LA eng NO 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). NO Spanish Agencia Estatal de Investigación NO Generalitat de Catalunya NO Ministerio Economía, Industria y Competitividad DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026