We show that if Chomsky's (1993) locality theory is adopted, then it is necessary to postulate VP-internal functional projections in order to account for object shift in double object constructions in Icelandic. We account for these functional projections by analyzing ditransitive verbs as causative constructions, where a causative ''light verb'' takes a TP complement. Finally, we show that the VP-internal functional structure is independently needed to account for word order phenomena in particle constructions in Icelandic.
Collins, Chris and Höskuldur Thráinsson. 1996. VP Internal Structure and Object Shift in Icelandic. Linguistic Inquiry 27.3, 391-444.