PrefaceRicardo Otheguy IntroductionAna M. Carvalho, Rafael Orozco, and Naomi Lapidus Shin Part I: Subject Pronoun Expression in Monolingual Varieties of Spanish1. Variation of Overt and Null Subject Pronouns in the Spanish of Santo DomingoGabriela G. Alfaraz 2. Pronominal Variation in Colombian Costeno SpanishRafael Orozco 3. Subject Pronoun Expression in Oral Mexican SpanishYolanda Lastra and Pedro Martin Butragueno 4. Subject Pronoun Usage in Formulaic Sequences: Evidence from Peninsular SpanishPekka Posio Part II: Subject Pronoun Expression in Spanish in Contact with Other Languages5. Foundations for the Study of Subject Pronoun Expression in Spanish in Contact with English: Assessing Intralinguistic (Dis)similarity via Intralinguistic VariabilityRena Torres Cacoullos and Catherine E. Travis 6. Subject Pronoun Expression in Contact with Maya in Yucatan SpanishJim Michnowicz 7. First Person Singular Subject Pronoun Expression in Spanish in Contact with CatalanAna de Prada Perez8. Subject Pronoun Expression in Spanish in Contact with PortugueseAna M. Carvalho and Ryan M. Bessett Part III: Subject Pronoun Expression in Contexts of Acquisition 9. The Emergence of Structured Variability in Morphosyntax: Childhood Acquisition of Spanish Subject PronounsNaomi Lapidus Shin and Daniel Erker 10. Variable Subject Expression in Second Language Spanish: Uncovering the Developmental Sequence and Predictive Linguistic FactorsKimberly Geeslin, Bret Linford, and Stephen Fafulas 11. The Acquisition of Grammatical Subjects by Spanish-English BilingualsCarmen Silva-Corvalan 12. Subject Expression in Bilingual School-age Children in the United StatesSilvina Montrul and Noelia Sanchez-WalkerContributors Index