Rosetta Stone - cropped

2011    “The grammar of use and the use of grammar.”  Conference on System, Usage, and Society.  Freiburg Institute of Advanced Study, Freiburg, Germany. November.

2006    “Endangered language varieties: Vernacular speech and linguistic standardization in Brazilian Portuguese.”  Georgetown University Roundtable. March. (with Ana Zilles)

2005    “Diglossia, code-switching, style-shifting: A field theory of variety alternation.” NWAV 34, New York University, October. (lead author, with Laureen Lim).

2003    “The limits of linguistic community: Speech styles and variable constraint effects.”  NWAV-32. University of Pennsylvania, October. (second author, with Laureen Lim).