Most sociolinguistic studies rely on apparent time, cross-sectional methods to analyze language change. On the basis of apparent time data, sociolinguists have hypothesized that cultural processes of lifespan change create predictable cycles of linguistic behavior in which adolescents lead in the use of vernacular variants and advance sound change…

Models the spread of linguistic change by taking account of the ages of the acquirers and transmitters of change. The article focuses on three interlocutor combinations: parent-infant/young child, peer group-preadolescent and older adolescent/adult-adolescent. Findings suggest that borrowings are the easiest to acquire, while lexically…

Articles in this issue focus on language evolution, variation, and heterogeneity. The following are English translations of the French article titles appearing in the issue: "Irregular Phonetic Development Due to Frequency; Regional Traits in Proto-Romance"; "Linguistic Evolution and Evolution of Perspective in the Comparative…