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六 结 论

本文在跨期均衡理论框架下,拓展了哈伯格-劳尔森-梅茨勒效应模型,分析了该效应的传导机制,并探讨贸易条件改变的持续性对经常账户的不同影响,这取决于经济参与主体主观贴现因子和实际贴现因子的相对大小。H-L-M效应是否存在依赖于收入随时间变动(持续期内或永久期内)的轨迹,主观贴现因子和市场贴现因子的相对大小决定了消费和储蓄的变化趋势。通过构建ARDL模型分析贸易条件改变与经常项目两者长短期关系,结果显示中国长期和短期均存在哈伯格-劳尔森-梅茨勒效应。这表现短期和长期内贸易条件与贸易收支余额均呈同向变动趋势。

本文继续通过构建SVAR模型进一步分析哈伯格-劳尔森-梅茨勒效应的传导机制,即贸易条件、出口品产出以及经常项目三者之间的相互关系。实证结果显示,贸易条件的变动对经常账户和出口品产出的影响是相同的,贸易条件与经常项目同向变动,更加验证了哈伯格-劳尔森-梅茨勒效应在中国的存在性。经常账户的波动主要受出口品产出和贸易条件波动的影响,贸易条件对经常项目的影响不容忽视。

本研究的政策意义在于我国政府对贸易收支的调节,不仅要关注人民币汇率,更需紧密跟踪我国整体贸易条件的变化,这样才能在调节我国对外贸易政策中掌握主动性。同时,在处理我国对外贸易的问题上应更多地关注贸易条件的变动引致的总供给、总需求跨期变化,以及经济主体的效用最优化和宏观经济的跨期均衡对我国外部均衡的影响,在推动汇率市场化的过程中,兼顾考虑对贸易条件的影响。

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论文执行编辑:王 宇
论文接收日期:2014年3月19日 +JduwgMig5DmK/uTnJUq22O9c8dKNfwyqZ8B64sB4XCkAZkExWawNJA28sHnHjEC

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