Intra-Industry Trade and Strategic Trade Policies under the OligopolyMarkets Post-War Development of japanese Automobile Industry

日本汽车工业的战后发展似乎已经与日本经济同步发展。特别是，日本最大的贸易伙伴美国和日本遇到了贸易自由化、自愿出口限制等与两国汽车产业密切相关的经济冲突。以往研究汽车行业的文献很多，如母公司与分包商之间的分包关系、具体企业的数据分析等。然而，几乎没有一个模型能够提供一个一致的、综合的模型，能够从实证的角度解释日本汽车工业的战后发展。正如我在报告中所说，第一章描述了日本汽车工业战后发展的特点。第二章基于博弈论的方法，提出了一个简单的统一模型。第三章扩展了第二章中给出的基本模型，并允许将其用于经验目的。第四章进行了实证研究，得出了许多有趣的结论：(1)20世纪60年代末，S在日本汽车业串通率上升的同时，也出现了一边倒的趋势。就在贸易自由化之前，日本汽车工业似乎拥有足够的竞争力来对抗美国汽车制造商。(2)上世纪70年代的S，美国市场的竞争比日本更激烈。(3)考察了自愿性出口限制的分析，给出了几种战略性贸易政策的计算方法。

It seems that the post-war development of Japanese automobile industry has paced with that of the Japanese economy. In particular, the USA,the giggest trade partner for Japan, and Japan met economic conflicts such as trade liberalization, voluntary export restraints, among others, which were closely related to their automobile industry. In the past, there are much literature treating the automobile industry, such as subcontract relation between parent firm and subcontractors, data analysis on specific firms, and so on. However, there is almost none to supply a consistent and synthetic model, which can explain the post-war development of the Japanese autombile industry from the empirical standpoint. As stated in my Report, Chapter 1 provides the descriptive features of post-war development of the Japanese automobile industry. Chapter 2 presents a simple unified model, based on game-theoretic approach. Chaplter 3 extends the basi modelgiven in Chapter 2 and enables to use it for empirical purpose. Chapter 4 conducts empirical work and derives many interesting results : (1)in late 1960's, the rates of collusion in the Japanese automobile industry were increased and at the same time monpolistic tendency has risen. Just before trade liberalization, Japanese automobile industry seems to possess enough competitive power against US auto makers.(2)in 1970's the US market was more competitive than Japan. (3)We investigated The analysis of voluntary export restraints and showed the method to calcurate several strategic trade policies.