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The Value of Information in the Court: Get it Right, Keep it Tight

Author(s): Iaryczower, Matias; Shum, Matthew

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Abstract: We estimate an equilibrium model of decision making in the US Supreme Court that takes into account both private information and ideological differences between justices. We measure the value of information in the court by the probability that a justice votes differently from how she would have voted without case-specific information. Our results suggest a sizable value of information: in 44 percent of cases, justices' initial leanings are changed by their personal assessments of the case. Our results also confirm the increased politicization of the Supreme Court in the last quarter century. Counterfactual simulations provide implications for institutional design.
Publication Date: Feb-2012
Citation: Iaryczower, M, Shum, M. (2012). The value of information in the court: Get it right, keep it tight. American Economic Review, 102 (1), 202 - 237. doi:10.1257/aer.102.1.202
DOI: doi:10.1257/aer.102.1.202
ISSN: 0002-8282
Pages: 202 - 237
Type of Material: Journal Article
Journal/Proceeding Title: American Economic Review
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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