I am a professor of linguistics at the University of Kentucky. I received my PhD in linguistics from the Ohio State University in 1981. In recent years, my research has focused on the theory of inflectional morphology. In a series of publications, I have argued for an inferential-realizational theory of inflectional morphology known as Paradigm Function Morphology. Together with Raphael Finkel, I have argued for a novel approach to morphological typology based on the implicative patterns in a language's inflectional paradigms. I have served as review editor for the journal "Language" and currently serve as co-editor of the journal "Word Structure".