Topic and focus at the peripheries: the dynamics of tree growth

Abstract

In this paper topic and focus effects at both left and right periphery are argued to be epiphenomena of general properties of tree growth. We incorporate Korean into this account as a prototypical verb-final language, and show how long- and short-distance scrambling form part of this general picture. Multiple long-distance scrambling effects emerge as a consequence of the feeding relationship between different forms of structural under-specification. We also show how the array of effects at the right periphery, in both verb-final and other language-types, can also be explained with the same concepts of tree growth. In particular the Right Roof Constraint, a well-known but little understood constraint, is an immediate consequence of compositionality constraints as articulated in this system.