The Minimalist Program consists of four recent essays, including the previously unpublished "Categories and Transformations," that attempt to situate linguistic theory in the broader cognitive sciences. In these essays the minimalist approach to linguistic theory is formulated and progressively developed. Building on the theory of principles and parameters and, in particular, on principles of economy of derivation and representation, the minimalist framework takes Universal Grammar as providing a unique computational system, with derivations driven by morphological properties, to which the syntactic variation of languages is also restricted.