Rather than treating participants in L2 interactions as deficient speakers, the book begins with the assumption that those who interact using a second language possess interactional competencies. The studies set out to identify what these competencies are and how they change across time. By doing so, they address some of the difficult and yet unresolved issues that arise when it comes to comparing actions or practices across different moments in time.
(Co-editor), J. H. The Development of Interactional Competence. Multilingual Matters, 2011.