My current research examines the prosodic structures of northern Italian dialects and their interface with morphological and syntactic structures, and the realization of clitics in different morphological and syntactic contexts. Sample recent publications in this area include: Aronoff, Moradi, Petrovic, and Repetti (2025), Aronoff, Moradi, Petrovic, Repetti (2025), Aronoff and Repetti (2022), Repetti (2020), Repetti (2016), Ordóñez and Repetti (2014), Kim and Repetti (2013), Cardinaletti and Repetti (2009), Cardinaletti and Repetti (2008), Cardinaletti and Repetti (2007), Ordóñez and Repetti (2006).
I also investigate the ways in which closely related languages differ, the constraints on that variation, and the historical processes that lead to the types of differences observed. My work primarily focuses on endangered Romance languages (“dialects”). Here are some recent publications on this topic: Repetti (2016), Liu and Repetti (2020_NACCL), Liu and Repetti (2020_WECOL), Ordóñez and Repetti (2014), Romanello and Repetti (2014). The Clitics of Romance Languages database that I created with Francisco Ordóñez can be found here.
Related to this is my interest in historical linguistics, and Jordan Kodner and I recently published a chapter in the Oxford Handbook of the Italian Language on "Historical Phonology" (2026).
I'm also interested in typology, or the range of variation attested in human languages and what that can tell us about universal grammar; a group of students and I published a paper in Linguistic Typology (2024) on ablaut reduplicative structures cross-linguistically.
Another long-standing research interest of mine has been the adaptation of foreign words to the phonology and morphology of the borrowing language. You can find some of that work here: Repetti (2012), Repetti (2009), Repetti (2006).
I've also been involved in a few projects dealing with the teaching of Linguistics: Cépeda et al (2023), De Salvo, Larson and Repetti (2019).