Head-marking inflection and the architecture of grammatical theory

Within generative grammar, noun incorporation and other compounding processes have traditionally been the focus of morpho-syntacticians, while reduplication has been investigated primarily by morpho-phonologists. The interaction of these two phenomena in a single language has significant implications that go beyond the narrow concerns of these two sub-domains, bearing much more broadly on the architecture of grammatical theory. This paper investigates the interactions of reduplication and compounding within one language, Hiaki (Yaqui). Reduplication for aspectual inflection in Hiaki occurs inside of compounds and other derived words, marking the head of the word. We demonstrate the major architectural issues resting on the analysis of these phenomena by examining how different theoretical perspectives can (or cannot) accommodate the Hiaki data.