Chong, Song-yun. 1997. The Role of X-bar Theory in Word Structure. Studies in Modern Grammatical Theories 10: 79-98. This paper deals with the interpretation of X-bar theory in conjunction with word structure, in which the position of `Head` can be determined by means of parametric Right-hand Head Rule/RHR. IncidentaVy, R.HR may be applicable to most of the words in English. However, it is incapable of applying to inflectional words, the words with category-changing prefixes(verb forming ones), verb-particle compounds, etc. in English as well as some other languages in which left-headed types are predominating. I will argue, on the one hand, for the efficiency of checking Head position with present principles of- X-bar theory, and, on the other hand, to point out some inadequate functions in RHR. I would like, then, to propose an alternative which may be supplemented for inadequate part of RHR. I will justify that License Conditions proposed by Lieber(1992) is necessary for the placement of Head and Nonhead elements(complements, specifies, modifier, etc.)in word structure. To prove the corollary, I am going to instantiate the examples from both the syntactic phrases and words(complex words and compound words). Finally, I would like to show that the domain of this paper is to the extent that inflectional morphology and derivational morphology can be operated by means of identical lexical rules which will surely be in parallel with the Strong Lexicalists Hypothesis. Concomitantly, the use of X-bar theory in this paper is restricted to complex words(including inflectional word) and compound words(root compound, phrasal compound, and synthetic compound).

• 정성윤 | Song Yun Chong