Jung, In-Gyo & Yang, Yong-seok. 2000. A Study on the Productivity of Neologism. Studies in Modern Grammar 19, 109-138. The aim of this study is to analyze the morphological structure of neologisms in the novel of X-generation (1991) written by Douglas Coupland on the basis of the framework of Word Syntax (Lieber, 1992), and to suggest the paradigm of morphological derivatives and spelling module between lexicon and grammatical components. X-bar theory works well in explaining the combinational process of affixes, but the nonhead of a lexical item can be bound near its adjacent category. The results obtained are as follows.: 1) several suffixes which form ]｛_(N,A)｝_]N such as -ism, -ing, -ness, -ification, -tion, and -phobia have high productivity as well as syntactic adequacy. 2) the addition of formatives such as -ozo, -job, -chondria, and Quelle by a sort of blending has lower productivity. 3) the root compounding word, `-slumming` may be formulated as [[[N₁+al]+N₂]+A_(fi)] in the deep structure, and used as a pejorative. 4) spelling variations of -vul-, -o-, -to, -o- are the outcomes realized by some phonological conflations.