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Extraneous factors in judicial decisions

Bibliographic Data

ID23319136
AuthorsShai Danziger (Department of Management, Ben Gurion University of the Negev, Beer Sheva 84105, Israel; and), Jonathan Levav (0000-0002-2726-399X, Columbia Business School, Columbia University, New York, NY 10027), Liora G Avnaim-Pesso (0009-0002-9504-2723, Ben-Gurion University of the Negev), Liora Avnaim-Pesso (Department of Management, Ben Gurion University of the Negev, Beer Sheva 84105, Israel; and)
Year2011
Volume108
Issue17
Pages6889-6892
Publication date2011-04-26
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueProceedings of the National Academy of Sciences (JOURNAL)
Journal identifiersISSN: 0027-8424 • E-ISSN: 1091-6490
PublisherNational Academy of Sciences (PUBLISHER • US)
DOI10.1073/pnas.1018033108
PMID21482790
PMCIDPMC3084045
OpenAlexW1991486227
LanguageEN
Citations received181
References cited15

Are judicial rulings based solely on laws and facts? Legal formalism holds that judges apply legal reasons to the facts of a case in a rational, mechanical, and deliberative manner. In contrast, legal realists argue that the rational application of legal reasons does not sufficiently explain the decisions of judges and that psychological, political, and social factors influence judicial rulings. We test the common caricature of realism that justice is “what the judge ate for breakfast” in sequential parole decisions made by experienced judges. We record the judges’ two daily food breaks, which result in segmenting the deliberations of the day into three distinct “decision sessions.” We find that the percentage of favorable rulings drops gradually from ≈65% to nearly zero within each decision session and returns abruptly to ≈65% after a break. Our findings suggest that judicial rulings can be swayed by extraneous variables that should have no bearing on legal decisions.

Black letter law · Comparative law · Economic Justice · Formalism (music) · Judicial opinion · Legal formalism · Political science · Politics · Decision-Making and Behavioral Economics · Experimental Behavioral Economics Studies · Law · Psychology · Psychology of Moral and Emotional Judgment

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Unique citing works181
Citations per year12,07
Citation span2011 - 2026 (16)
Citation velocitycurrent
Highly citedYes
Citation typesNeutral: 163

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