Robert Freidin is Professor of the Council of the Humanities in the Philosophy Department at Princeton University. Carlos P. Otero is Professor Emeritus of Spanish and Portuguese at the University of California, Los Angeles. Maria Luisa Zubizarreta is Professor of Linguistics at the University of Southern California. She is the author of Levels of Representation in the Lexicon and in the Syntax. Jean-Roger Vergnaud is Professor of Linguistics at the University of Maryland and Senior Researcher at the Centre National de la Recherche Scientifique and the Centre d'Etudes et de Recherche en Informatique Linguistique in France. Howard Lasnik is a Professor at the University of Connecticut. Maria Rita Manzini is Lecturer in the Department of Phonetics and Linguistics, University College, London. Noam Chomsky is Institute Professor and Professor of Linguistics (Emeritus) at MIT and the author of many influential books on linguistics, including Aspects of the Theory of Syntax and The Minimalist Program, both published by the MIT Press. Henk van Riemsdijk is full professor in the Department of Language and Literature, Tilburg University, Holland. Joseph Aoun is President of Northeastern University. Yen-hui Audrey Li is Professor of Linguistics at the University of Southern California. Edwin Williams is Professor of Linguistics at Princeton University. Morris Halle is Institute Professor and Professor of Linguistics Emeritus at MIT.