This dissertation shows how languages differ in their morphosyntactic sensitivity to variations in the semantics of direct objects. Whereas some languages reflect semantic changes of the direct object in its marking others do not. As a result, we observe mismatches between semantic and morphosyntactic transitivity in the latter type of languages. This becomes particularly clear in a detailed study of the cognate object construction in English. Besides, this dissertation shows that a cross-linguistically uniform phenomenon can be driven by various motivations. This is demonstrated for differential object marking, a cross-linguistically recurrent phenomenon in which direct objects are overtly case marked depending on their semantic features. Two factors appear to govern differential object marking cross-linguistically: prominence-based marking and recoverability of grammatical roles. For some languages only one of these factors can be identified to be of importance, but in other languages, they are simultaneously responsible for object marking. In order to accommodate the full pattern of differential object marking, a bidirectional optimality-theoretic model is developed in which speakers take into account the perspective of the hearer. By doing so, this study shows how typological and optimality theoretical insights can be combined in order to gain more insight in the interaction of the universal principles that guide the marking of direct objects in natural language.

Not all sentences encode their subjects in the same way. Some languages overtly mark some subjects depending on certain features of the subject argument or the sentence in which the subject figures. This is known as Differential Subject Marking (DSM). Containing illuminating discussions of DSM from languages all over the world, this book shows that DSM is often the result of interactions between conflicting constraints on language use.

While there are languages that code a particular grammatical role (e.g. subject or direct object) in one and the same way across the board, many more languages code the same grammatical roles differentially. The variables which condition the differential argument marking (or DAM) pertain to various properties of the NP (such as animacy or definiteness) or to event semantics or various properties of the clause. While the main line of current research on DAM is mainly synchronic the volume tackles the diachronic perspective. The tenet is that the emergence and the development of differential marking systems provide a different kind of evidence for the understanding of the phenomenon. The present volume consists of 18 chapters and primarily brings together diachronic case studies on particular languages or language groups including e.g. Finno-Ugric, Sino-Tibetan and Japonic languages. The volume also includes a position paper, which provides an overview of the typology of different subtypes of DAM systems, a chapter on computer simulation of the emergence of DAM and a chapter devoted to the cross-linguistic effects of referential hierarchies on DAM.

Differential Object marking (DOM), a linguistic phenomenon in which a direct object is morphologically marked for semantic and pragmatic reasons, has attracted the attention of several subfields of linguistics in the past few years. DOM has evolved diachronically in many languages, whereas it has disappeared from others; it is easily acquired by monolingual children, but presents high instability and variability in bilingual acquisition and language contact situations. This edited collection contributes to further our understanding of the nature and development of DOM in the languages of the world, in acquisition, and in language contact, variation, and change. The thirteen chapters in this volume present new empirical data from Estonian, Spanish, Turkish, Korean, Hindi, Romanian and Basque in different acquisition contexts and learner populations. They also bring together multiple theoretical and methodological perspectives to account for the complexity and dynamicity of this widespread linguistic phenomenon.

Differential argument marking has been a hot topic in linguistics for several decades, both because it is cross-linguistically widespread and because it raises essential questions at multiple levels of grammar, including the relationship between abstract processes and overt morphological marking, between case and agreement, and between syntax and information structure. This volume provides an introduction into the current state of the art of research on differential case marking and chapters by leading linguists addressing theoretical questions in a wide range of typologically and geographically diverse languages from the Indo-European, Sinitic, Turkic, and Uralic families. The chapters engage with current theoretical issues in the morphology, syntax, semantics, and processing of differential argument marking. A central issue addressed by all the authors is the adequacy of various theoretical approaches in modelling (different varieties of) differential case marking, such as those determined by topicality, those driven by cumulative factors, and those that involve double marking. The volume will be of interest to students and researchers working on cross-linguistic variation in differential marking and its theoretical modelling.

This book explores person markers, the linguistic elements that provide points of reference to speech-act participants. Michael Cysouw develops a new framework for the typology of person marking based on the rejection of the notion of plurality for its analysis. When a mother says "Mummy is going to say goodnight now", Mummy is the person marker in a way that in English is confined to motherese but which is used more commonly in some other languages and may also be characteristic of much earlier forms. Dr Cysouw divides the person markers of 400 languages into paradigms. He considers how the structure of these person paradigms relates to their function. His investigation provides a clear account of how person markers work syntactically, pragmatically, and semantically as well as giving fresh insights into aspects of linguistic change, language-relatedness, and the interfaces between discourse, syntax, and semantics. The combination of a typological and a comparative approach results in the first outline of a cognitive map of the paradigmatic structure of person marking.