Opacity and cyclicity

Cyclic phonology-morphology interactions and opacity have been dealt with in strictly parallelist OT by introducing new constraint types, including Base-Output constraints and Sympathy. An alternative OT approach to the phonology-morphology interface is a constraint-based version of Lexical Phonology and Morphology (LPM), in which stems, words, and sentences are subject to separate, serially related OT constraint systems. I show that OT-based LPM provides a superior account of the cyclic morphology/phonology interaction in Levantine data from which Kenstowicz and Kager drew support for Base-Output constraints, and that the same account explains the derivational opacity phenomena for which Sympathy theory provides a purely descriptive solution.