Article

Automated fact-value distinction in court opinions

Yu Cao, Elliott Ash, and Daniel L. Chen

Abstract

This paper studies the problem of automated classification of fact statements and value statements in written judicial decisions. We compare a range of methods and demonstrate that the linguistic features of sentences and paragraphs can be used to successfully classify them along this dimension. The Wordscores method by Laver et al. (Am Polit Sci Rev 97(2):311–331, 2003) performs best in held out data. In an application, we show that the value segments of opinions are more informative than fact segments of the ideological direction of U.S. circuit court opinions.

Keywords

Facts versus law; Law and machine learning; Law and NLP; Text data;

JEL codes

  • K40: General

Reference

Yu Cao, Elliott Ash, and Daniel L. Chen, Automated fact-value distinction in court opinions, European Journal of Law and Economics, vol. 50, December 2020, pp. 451–467.

Published in

European Journal of Law and Economics, vol. 50, December 2020, pp. 451–467