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Dependency Locality as an Explanatory Principle for Word Order

Published online by Cambridge University Press:  01 January 2026

Richard Futrell*
Affiliation:
University of California, Irvine
Roger P. Levy*
Affiliation:
Massachusetts Institute of Technology
Edward Gibson*
Affiliation:
Massachusetts Institute of Technology

Abstract

This work focuses on explaining both grammatical universals of word order and quantitative word-order preferences in usage by means of a simple efficiency principle: dependency locality. In its simplest form, dependency locality holds that words linked in a syntactic dependency (any head–dependent relationship) should be close in linear order. We give large-scale corpus evidence that dependency locality predicts word order in both grammar and usage, beyond what would be expected from independently motivated principles, and demonstrate a means for dissociating grammar and usage in corpus studies. Finally, we discuss previously undocumented variation in dependency length and how it correlates with other linguistic features such as head direction, providing a rich set of explananda for future linguistic theories.

Information

Type
Research Article
Copyright
Copyright © 2020 Linguistic Society of America

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