UnrestrictedThis dissertation is a variationist account of two non-standard relative clause (RC) structures in Spanish: resumptive pronouns (RPs) and prepositional-phrase (PP) chopping. Previous typological studies considered RP explanations based on difficulty of processing (Hawkins, 1994), while Spanish-specific quantitative studies proposed a number of factors regarding the relationship between the RC and its antecedent (Silva-Corvalán, 1996; Bentivoglio, 2003; Samper et al., 2003). To my knowledge, there are no previous studies of PP-chopping in Spanish RCs, and the only study of a Romance language, Portuguese, suggests that RPs and PP-chopping stand in complementary distribution (Tarallo, 1986). I argue that the factors favoring RP pr...