This paper extends earlier studies in this field by Chenery-Watanabe [2] and Santhanam-Patil [3] to a comparison of the production structure of Korea at present with those of other countries and with that of Korea at various points in the past. The results of this study provide additional evidence in support of the main findings of earlier studies. It is suggested that existing methods for computing inter-industry linkages and for comparing production structures could be improved by including an analysis of both "domestic" and "international linkages".