- 著者
-
中村 勝之
野尻 亘
- 出版者
- 桃山学院大学総合研究所
- 雑誌
- 桃山学院大学経済経営論集 (ISSN:02869721)
- 巻号頁・発行日
- vol.61, no.2, pp.183-211, 2019-10
Wide-ranging discussions have taken place, in fields including bothregulation theory and economic geography, concerning the impact of Justin-Time(hereafter JIT)production on industrial location.In particular, the series of analyses by McCann, based on partialequilibrium theory, offer an important theoretical approach for the locationmodel in relation to the adoption of JIT. To the concepts of transportationcosts and distance found in conventional location theory models, McCannadded the concepts of commodity procurement and inventory control costs,to create a logistical cost model. His approach revealed that differences inthe optimal size of transportation lots for the adoption of JIT clearly affectboth location clustering and dispersal.This paper takes up Harrigan and Venables(2006)as a location modelrelated to JIT in spatial economics based on a general equilibrium model.Through a close reading of their analysis, we seek to clarify the manner inwhich their analysis approached the constituent causes of industrialclustering following the adoption of JIT.Our reading revealed that, according to Harrigan and Venables(2006),the following points contribute to the clustering of parts suppliers followingthe adoption of JIT.First, despite high transportation costs, clustering of parts suppliers didnot occur since parts could be punctually delivered when the product wasin its final assembly stage. In other words, the clustering of parts suppliersin the vicinity of the production point occurs only under uncertain deliveryconditions.Second, agglomeration of parts suppliers occurs when there is a risk ofdeliveries being delayed thanks to their having to be procured fromelsewhere, to prevent increases in production costs and consequent declinein demand for the product.We conclude that, if effective communication systems can be employedto cope with sudden changes in order quantity and to eliminate theproblems of defective parts and excess inventory, transactions involvingJIT will be possible even with parts suppliers located far from theproduction point.