DFG-Forschergruppe 742). As in the predecessor volume Linguistische

One-to-many relations play a crucial role in two major research areas of current grammatical theory: quirky identity and paucity of resources. This volume collects ten papers addressing these topics from different perspectives, focussing on new theoretical approaches to long-standing empirical problems. The ideas and analyses documented in these contributions have emerged in the context of the international scientific network Core Mechanisms of Exponence and the research project Argument Encoding in Morphology and Syntax (as part of the DFG-Forschergruppe 742). As in the predecessor volume Linguistische Arbeits Berichte 84, language data are drawn from a large sample of In-The theoretical frameworks adopted range from the Minimalist Program over Distributed Morphology to different versions of Optimality Theory. Paucity of resources is a prominent theme in current research on " Person-Case-Constraint " (PCC) effects (Bonet, 1991), where specific cooccurrences of two clitics or agreement markers corresponding to different object DPs lead to ungrammaticality. According to the prevalent view, PCC effects result from configurations where two DPs are within the domain of a single probing head, and effectively compete for the featural resources of the probe (Rezac, 2004; Anagnostopoulou, 2006). In the paper by Heck and Richards, this line of research is extended to the polysynthetic system of Southern Tiwa which shows a complex array of restrictions on agreement for three arguments and incorporation. A second syntactic incarnation of resource paucity addressed in the paper by Georgi and Müller can be found in constructions where a single syntactic head serves multiple duty, and reprojects in a higher position to satisfy different checking requirements of the same argument. In morphological theory, paucity of resources pops up wherever different morphosyntactic categories compete for realization in the same or conversely where a single category could be realized in different slots (e.g. a clitic and an agreement slot), but is restricted by the morphological