This dissertation investigates the real-time comprehension and final interpretation of object pronouns in Vietnamese, a language in which reflexive and non-reflexive pronominal forms have overlapping meanings. It addresses the questions of whether and how Principle B is applied as a structural constraint to determine the appropriate antecedent for pronouns in the language. The central argument is that Vietnamese speakers rely on two distinct mechanisms to resolve anaphoric relations: Within a pronoun's local domain, even though coreference is highly permissive, binding is strictly prohibited. Results from three two-alternative forced choice and three self-paced reading experiments show consistent profiles for both the online and offline processes: Non-local subjects are always preferred, and local subjects are only accessible when they are referential, but not quantified, noun phrases. These patterns align with the key predictions of a pragmatic approach to pronominal competition, supporting the view of characterizing Binding Theory as a competitive model.