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Why Precedent in Law (and Elsewhere) is Not Totally (or Even Substantially) about Analogy

Frederick Schauer

University of Virginia School of Law

August 2007

KSG Working Paper No. RWP07-036

Cognitive scientists and others who do research on analogical reasoning often claim that the use of precedent in law is an application of reasoning by analogy. In fact, however, law's principle of precedent is quite different. The typical use of analogy, including the use of analogies to earlier decisions in legal argument, involves the selection of an analog from multiple candidates in order to help make the best decision now. But the legal principle of precedent requires that a prior decision be treated as binding, even if the current decision-maker disagrees with that decision. When the identity between a prior decision and the current question is obvious and inescapable, precedent thus imposes a constraint quite different from the effect of a typical argument by analogy. The importance of this is not so much in showing the a common claim in the psychological and cognitive science literature is mistaken, but that the possibility of making decisions under the constraints of binding precedent is itself an important form of decision-making that deserves to be researched in its own right.

Number of Pages in PDF File: 23

Keywords: precedent, analogy, legal reasoning, thinking and reasoning, cognitive psychology, Advocacy and Persuasion, Ethics/Political Philosophy, Law and Legal Institutions

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Date posted: August 27, 2007 ; Last revised: August 27, 2009

Suggested Citation

Schauer, Frederick, Why Precedent in Law (and Elsewhere) is Not Totally (or Even Substantially) about Analogy (August 2007). KSG Working Paper No. RWP07-036. Available at SSRN: https://ssrn.com/abstract=1007001 or http://dx.doi.org/10.2139/ssrn.1007001

Contact Information

Frederick Schauer (Contact Author)
University of Virginia School of Law ( email )
580 Massie Road
Charlottesville, VA 22903
United States
434-924-6777 (Phone)

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