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How others drive our sense of understanding of policies

Published online by Cambridge University Press:  07 September 2020

NATHANIEL RABB ,
JOHN J. HAN  and
STEVEN A. SLOMAN
NATHANIEL RABB*
Affiliation:
The Policy Lab, Brown University, Providence, RI, USA
JOHN J. HAN
Affiliation:
Tepper School of Business, Carnegie Mellon University, Pittsburgh, PA, USA
STEVEN A. SLOMAN
Affiliation:
Department of Cognitive, Linguistic, and Psychological Sciences, Brown University, Providence, RI, USA
*
*Correspondence to: The Policy Lab, Brown University, 225 Dyer Street, 5th Floor, Providence, RI 02903, USA. E-mail: natrabb@gmail.com
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Abstract

Five experiments are reported to compare models of attitude formation about hot-button policy issues like climate change. In broad strokes, the deficit model states that incorrect opinions are a result of a lack of information, while the cultural cognition model states that opinions are formed to maximize congruence with the group that one affiliates with. The community of knowledge hypothesis takes an integrative position. It states that opinions are based on perceived knowledge, but that perceptions are partly determined by the knowledge that sits in the heads of others in the community. We use the fact that people's sense of understanding is affected by knowledge of others’ understanding to arbitrate among these views in the domain of public policy. In all experiments (N = 1767), we find that the contagious sense of understanding is nonpartisan and robust to experimental manipulations intended to eliminate it. While ideology clearly affects people's attitudes, sense of understanding does as well, but level of actual knowledge does not. And the extent to which people overestimate their own knowledge partly determines the extremity of their position. The pattern of results is most consistent with the community of knowledge hypothesis. Implications for climate policy are considered.

Type
Article
Information
Behavioural Public Policy , Volume 5 , Special Issue 4: Behavioural Climate Policy , October 2021 , pp. 454 - 479
Copyright
Copyright © The Author(s) 2020. Published by Cambridge University Press

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