This volume examines the conflicting factors that shape the content and form of grammatical rules in language usage. Speakers and addressees need to contend with these rules when expressing themselves and when trying to comprehend messages. For example, there are on-going competitions between the speaker's interests and the addressee's needs, or between constraints imposed by grammar and those imposed by online processing. These competitions influence a wide variety of systems, including case marking, agreement and word order, politeness forms, lexical choices, and the position of relative clauses. Chapters in the book analyse grammar and usage in adult language as well as first and second language acquisition, and the motivations that drive historical change. Several of the chapters seek explanations for the competitions involved, based on earlier accounts including the Competition Model, Natural Morphology, the functional-typological tradition, and Optimality Theory. The book will be of interest to linguists from a wide variety of backgrounds, particularly those interested in psycholinguistics, historical linguistics, philosophy of language, and language acquisition, from advanced undergraduate level upwards.

Even though the range of phenomena syntactic theories intend to account for is basically the same, the large number of current approaches to syntax shows how differently these phenomena can be interpreted, described, and explained. The goal of the volume is to probe into the question of how exactly these frameworks differ and what if anything they have in common. Descriptions of a sample of current approaches to syntax are presented by their major practitioners (Part I) followed by their metatheoretical underpinnings (Part II). Given that the goal is to facilitate a systematic comparison among the approaches, a checklist of issues was given to the contributors to address. The main headings are Data, Goals, Descriptive Tools, and Criteria for Evaluation. The chapters are structured uniformly allowing an item-by-item survey across the frameworks. The introduction lays out the parameters along which syntactic frameworks must be the same and how they may differ and a final paper draws some conclusions about similarities and differences. The volume is of interest to descriptive linguists, theoreticians of grammar, philosophers of science, and studies of the cognitive science of science.