Input-output analysis, developed by Nobel Prize winner Wassily Leontief, continues to be a vital area of research. Not only do academics find it a powerful tool in understanding how large scale economies--especially national economies--work, but many governments maintain computer input-output models to study their own economies. This important volume of work contains the latest research using the I-O model, focusing primarily on technology, planning, and development. The book derives from a conference held in Sapporo, Japan, in July, 1986.