... With few exceptions, variationist research on subject expression in Spanish has focused on the variation between null and overt SPs and the analyses are limited to contexts that are determined to permit variation between the two forms . Nonetheless, there are studies that suggest that these two forms are in variation with others, most notably full lexical NPs which have been shown to occur even following an adjacent previous mention of the same subject (Bentivoglio 1993, Dumont 2006, Gudmestad & Geeslin 2022, Gudmestad et al. 2013, Silva-Corvalán 2015. 2 Previous variationist research on subject expression in Spanish has found that variation between null and overt SPs is constrained by morphosyntactic factors such as person/number, tense, mood, and aspect (TMA), lexical frequency and reflexivity of the verb, semantic factors such as lexical content of the verb and specificity of the referent, discourse-level factors such as switch reference 3 , referent cohesiveness, the form of the previous mention of the subject (i.e., perseveration), discourse genre, clause type, as well as some extra-linguistic factors (Ávila-Jiménez 1995, Bayley & Pease-Alvarez 1996, 1997, Bentivoglio 1987, Cameron 1994, 1995, Cameron & Flores-Ferrán 2004, Enríquez 1984, Erker & Guy 2012, Flores-Ferrán 2005, Hochberg 1986, Morales 1986, Otheguy & Zentella 2012, Shin 2006, Shin & Cairns 2009, Shin & Otheguy 2009, Silva-Corvalán 1994, Travis 2007, Torres Cacoullos & Travis 2010; inter alia). The discourse-level factors previously mentioned have been found to be crucial in explaining subject expression in Spanish and are the focus of the current study. ...