Much recent work argues that lexical frequency plays a central explanatory role in linguistic theory, but the status, predicted effects, and methodological treatment of frequency are controversial, especially so in the less-investigated area of syntactic variation. This article addresses these issues in a case study of lexical frequency effects on…

In addition to providing an account of the empirical facts of language, a theory that aspires to account for language as a biologically based human faculty should seek a graceful integration of linguistic phenomena with what is known about other human cognitive capacities and about the character of brain computation. The present discussion note…

While affix ordering often reflects general syntactic or semantic principles, it can also be arbitrary or variable. This article develops a theory of morpheme ordering based on local morphotactic restrictions encoded as weighted bigram constraints. I examine the formal properties of morphotactic systems, including arbitrariness, nontransitivity,…

We use the variationist method to elucidate the expression of future time in English, examining multiple grammaticalization in the same domain ("will" and "going to"). Usage patterns show that the choice of form is not determined by invariant semantic readings such as proximity, certainty, willingness, or intention. Rather, particular instances of…

What is the mechanism by which a linguistic change advances across successive generations of speakers? We explore this question by using the model of incrementation provided in Labov 2001 and analyzing six current changes in English. Extending Labov's focus on recent and vigorous phonological changes, we target ongoing morphosyntactic(-semantic)…

Because many of the forms participating in inherent variability are not attested in the standard language, they are often construed as evidence of change. We test this assumption by confronting the standard, as instantiated by a unique corpus covering five centuries of French grammatical injunctions, with data on the evolution of spontaneous…