RT Journal Article T1 The Owen and Banzhaf-Owen values revisited A1 Alonso Meijide, José María A1 Casas Méndez, Balbina A1 González Rueda, Ángel Manuel A1 Lorenzo Freire, Silvia K1 Cooperative game K1 Shapley value K1 Banzhaf value K1 Coalition structure K1 Coalitional value K1 Balanced contributions AB In this work, we consider games with coalitional structure. We afford two new parallel axiomatic characterizations for the well-known Owen and Banzhaf–Owen coalitional values. Two properties are common to both characterizations: a property of balanced contributions and a property of neutrality. The results prove that the main difference between these two coalitional values is that the former is efficient, while the latter verifies a property of 2-efficiency. PB Taylor and Francis SN 0233-1934 SN 1029-4945 YR 2015 FD 2015 LK https://hdl.handle.net/10347/38705 UL https://hdl.handle.net/10347/38705 LA eng NO Alonso-Meijide, J. M., Casas-Méndez, B., González-Rueda, A. M., & Lorenzo-Freire, S. (2015). The Owen and Banzhaf–Owen values revisited. Optimization, 65(6), 1277–1291. https://doi.org/10.1080/02331934.2015.1091823 NO This is an Accepted Manuscript of an article published by Taylor & Francis in Optimization on 7 OOct 2015, available at: https://doi.org/10.1080/02331934.2015.1091823 NO Financial support from Ministerio de Ciencia y Tecnolog´ıa, Ministerio de Economía y Competitividad, and FEDER through grants MTM2011-27731-C03-02, ECO2011- 23460, MTM2014-53395-C3-1-P, and MTM2014-53395-C3-2-P is gratefully acknowledged. We also thank two anonymous referees for some thoughtful and constructive comments. DS Minerva RD 27 abr 2026