Although grammatical agreement or concord is widespread in human languages, linguistic theorists have generally treated agreement phenomena as secondary or even marginal. All the papers in this volume, however, take agreement phenomena seriously, as presenting either a general issue in theory construction or a descriptive problem in particular types of languages. The theoretical perspectives range from purportedly theory-neutral typological frameworks to assumptions about the validity of one or another current formal model. Further, the degree of generality ranges from a universalist nature-of-human-language agenda to concern with one or another aspect of grammatical agreement or with agreement in a single language or language group.

Agreement is a pervasive phenomenon across natural languages. Depending on one’s definition of what constitutes agreement, it is either found in virtually every natural language that we know of, or it is at least found in a great many. Either way, it seems to be a core part of the system that underpins our syntactic knowledge. Since the introduction of the operation of Agree in Chomsky (2000), agreement phenomena and the mechanism that underlies agreement have garnered a lot of attention in the Minimalist literature and have received different theoretical treatments at different stages. Since then, many different phenomena involving dependencies between elements in syntax, including movement or not, have been accounted for using Agree. The mechanism of Agree thus provides a powerful tool to model dependencies between syntactic elements far beyond φ-feature agreement. The articles collected in this volume further explore these topics and contribute to the ongoing debates surrounding agreement. The authors gathered in this book are internationally reknown experts in the field of Agreement.

Many NLP tasks have at their core a subtask of extracting the dependencies—who did what to whom—from natural language sentences. This task can be understood as the inverse of the problem solved in different ways by diverse human languages, namely, how to indicate the relationship between different parts of a sentence. Understanding how languages solve the problem can be extremely useful in both feature design and error analysis in the application of machine learning to NLP. Likewise, understanding cross-linguistic variation can be important for the design of MT systems and other multilingual applications. The purpose of this book is to present in a succinct and accessible fashion information about the morphological and syntactic structure of human languages that can be useful in creating more linguistically sophisticated, more language-independent, and thus more successful NLP systems. Table of Contents: Acknowledgments / Introduction/motivation / Morphology: Introduction / Morphophonology / Morphosyntax / Syntax: Introduction / Parts of speech / Heads, arguments, and adjuncts / Argument types and grammatical functions / Mismatches between syntactic position and semantic roles / Resources / Bibliography / Author's Biography / General Index / Index of Languages

A nontechnical introduction to complexity theory: its strengths, its weaknesses, and how it can be used to study grammars.

An argument that not only do movement and agreement occur in every language, they also work in tandem to imbue natural language with enormous expressive power. An unusual property of human language is the existence of movement operations. Modern syntactic theory from its inception has dealt with the puzzle of why movement should occur. In this monograph, Shigeru Miyagawa combines this question with another, that of the occurrence of agreement systems. Using data from a wide range of languages, he argues that movement and agreement work in tandem to achieve a specific goal: to imbue natural language with enormous expressive power. Without movement and agreement, he contends, human language would be merely a shadow of itself, with severe limitation on what can be expressed. Miyagawa investigates a variety of languages, including English, Japanese, Bantu languages, Romance languages, Finnish, and Chinese. He finds that every language manifests some kind of agreement, some in the form of the familiar person/number/gender system and others in the form of what Katalin É. Kiss calls “discourse configurational” features such as topic and focus. A key proposal of his argument is that the computational system in syntax deals with the wide range of agreement types uniformly—as if there were just one system—and an integral part of this computation turns out to be movement. Why Agree? Why Move? is unique in proposing a unified system for movement and agreement across language groups that are vastly diverse—Bantu languages, East Asian languages, Indo-European languages, and others.