Three explanatory challenges for Copy Theory

This paper advances a new approach to the syntax-PF mapping of movement chains. It is argued that Non-Distinctiveness of copies can be defined as an inclusion relation between the features of syntactic constituents at the interfaces. The assumptions behind such a definition (i.e., Late Insertion and unvalued features being 'invisible' at the interfaces) allow deriving (i) that only one link per chain is pronounced and (ii) that such a link must be the higher one in the structure. Wh-copying and low copy pronunciation phenomena are also shown to be captured by the proposed system.