Valence changing operations: Where does morpho-phonology interfere?

This study addresses the correlation between valence changing operations and morpho-phonology in Modern Hebrew. I examine the formations of reflexive, reciprocal and decausative verbs and the selection of their morphological output. I show that morph-phonological constraints affect the application of valence changing operations that apply in the lexicon in contrast to the ones that apply in the syntax. The paper reveals the unique morpho-phonology of the lexicon the position of morphology as an independent component of the grammar.