Group Belief: The Cognitive Non-Summative Account

Abstract This article concerns the criteria for when a group can collectively hold a belief. By proposing a cognitive non-summative account of group belief (GB), I highlight three necessary features at the individual level: commonality, mutuality, and group-based considerations. My account asserts that group G believes proposition p if and only if a sufficient majority of its members believe (1) p G , where p G is “Given some G-based considerations, p ,” and (2) “the majority of G also believe that p G .” The article critiques three significant accounts of GB: Anthony Quinton's simple summative account, Margaret Gilbert's and Raimo Tuomela's conative non-summative views, and Jennifer Lackey's modified summativism.