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A general equilibrium analysis of the effects of the formation of customs union on the member countries and non-member countries under imperfect competition

不完全竞争条件下关税同盟的形成对成员国和非成员国影响的一般均衡分析

基本信息

批准号：
11630022
负责人：
OKAWA Masayuki
金额：
$ 0.83万
依托单位：
Ritsumeikan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

项目摘要

In this research project, I investigated some aspects of the process of policy adjustments performed by the trading countries which aim to form free trade areas and customs union. I introduced imperfect competitive markets in the analyses. The framework of the analyses is basically general equilibrium.First, in a two-country, two-good, arbitrary many factor of production trading model in which one market is international oligopoly, I analyzed the effects of a VERs and quotas on the welfare of the importing country and compared the welfare levels with that under free trade.Secondly I examined the equivalence of tariffs and quotas imposed on oligopolistic intermediate input markets. We focus on a Cournot-Nash equilibrium and show that the outcome depends on the values of the structural parameters of the economy, the price elasticity of demand for the final good and the elasticity of substitution between the intermediate inputs. This analysis could be straightforwardly extended to a tree country model of customs union in which a country importing two intermediate goods forms customs union with one of the trading countries.I next studied the effects of a change in the level of quantity restriction on the behavior of the domestic firm and on the welfare of the importing country. It is shown that the results obtained by predecessors based on linear demand, constant elasticity demand, strategic substitutes and so forth all emerge as special cases.I am now studying a following problem : Which partner is more preferable for a country to form a customs union with, a country with imperfectly competitive markets or a country with perfectly competitive markets?

在本研究项目中，笔者对以自由贸易区和关税同盟为目标的贸易国进行政策调整的过程进行了研究。我在分析中引入了不完全竞争市场。本文的分析框架基本上是一般均衡，首先，在一个两国、两种商品、任意多生产要素的贸易模型中，在一个市场为国际寡头垄断的情况下，分析了限制进口关税和配额对进口国福利的影响，并与自由贸易下的福利水平进行了比较;其次，考察了对寡头垄断的中间投入品市场征收关税和配额的等价性。我们专注于古诺-纳什均衡，并表明，结果取决于经济的结构参数的值，最终产品的需求价格弹性和中间投入之间的替代弹性。这一分析可以简单地扩展到三国关税同盟模型，即进口两种中间产品的国家与其中一个贸易国结成关税同盟。接下来，我研究了数量限制水平的变化对国内企业行为和进口国福利的影响。结果表明，前人基于线性需求、常弹性需求、战略替代等的结果都是特例。我现在研究的问题是：一个国家与不完全竞争市场的国家还是与完全竞争市场的国家结成关税同盟更可取？