I work on the anthropological linguistics and sociolinguistics of the Andes. My research is based on fieldwork in areas where both Spanish and Quechua are spoken (Ecuador, Peru and Bolivia). My PhD dealt with Quechua oral storytelling in highland Ecuador. Since then I have published widely on Quechua oral history and narrative performance; anthropological approaches to the study of language contact, especially translation issues; the grammatical marking of evidence in Quechua discourse; language politics and language policy in the Andes; language and cultural identity in the Andes; intercultural education policy for indigenous peoples. My books include Por los linderos de la lengua. Ideologías lingüísticas en los Andes (2007, Lima: IEP/IFEA/PUCP).