I work primarily on issues in the philosophy of language and metaphysics. Much of my current work focuses on issues surrounding the phenomena termed de jure co-reference. In addition to de jure co-reference, my research interests include the following topics:

• • Mental files and semantic relationism

  • Referential communication

  • The semantics and pragmatics of referential terms (e.g. names, definite descriptions, pronouns, indexicals, and demonstratives)

  • The answering machine puzzle

  • Metaphysics of propositions