期刊
SCIENCE
卷 334, 期 6062, 页码 1578-1580出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1210280
关键词
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资金
- NSF [PHY-0848755]
- Searle Scholars Program
- Office of Naval Research [N00014-09-1-1074]
- Defense Advanced Research Projects Agency [HR0011-09-1-0055]
- Royal Society
- Direct For Mathematical & Physical Scien
- Division Of Physics [848755] Funding Source: National Science Foundation
Conflicting interests among group members are common when making collective decisions, yet failure to achieve consensus can be costly. Under these circumstances individuals may be susceptible to manipulation by a strongly opinionated, or extremist, minority. It has previously been argued, for humans and animals, that social groups containing individuals who are uninformed, or exhibit weak preferences, are particularly vulnerable to such manipulative agents. Here, we use theory and experiment to demonstrate that, for a wide range of conditions, a strongly opinionated minority can dictate group choice, but the presence of uninformed individuals spontaneously inhibits this process, returning control to the numerical majority. Our results emphasize the role of uninformed individuals in achieving democratic consensus amid internal group conflict and informational constraints.
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