This book explores the role of agreement morphology in the morphosyntactic realization of a verb's arguments. It examines the differences and parallels between configurational and nonconfigurational languages, languages that allow pronoun drop only in particular constructions, and languages which always require overt syntactic determiner phrases as arguments. These and related issues are explored in the context of a wide range of languages. The book will interest linguists at graduate level and above concerned with morphosyntactic theory, typology, and the interactions of syntax and morphology in different languages.