异质性企业贸易理论是否服从卢卡斯批判
发布时间：2018-11-02 11:26
【摘要】：本文通过对异质性企业贸易理论的探讨,构建可变贸易成本与生产率联合异质性的一般均衡模型,解释异质性企业贸易理论的产品多样性、社会福利以及企业选择的基础理论问题。研究发现,Melitz模型的参数限制区间在生产率无上界的帕累托分布下存在,在有上界的帕累托分布中消失;对社会福利的分解证明了自由贸易度提高会降低总的开放经济产品多样性。存在异质性可变贸易成本拓展模型,证明了市场分割未必会阻碍社会福利的增长。此外,可变贸易成本的提高会显著提升企业出口概率,从而社会福利的增长机制会出现与Melitz模型不一致的情况。
[Abstract]:Based on the discussion of heterogeneous enterprise trade theory, this paper constructs a general equilibrium model of variable trade cost and productivity heterogeneity, and explains the product diversity of heterogeneous enterprise trade theory. Social welfare and the basic theory of enterprise choice. It is found that the parameter limiting interval of the Melitz model exists under the Pareto distribution of the supreme productivity bound and disappears in the upper bound Pareto distribution. The breakdown of social welfare demonstrates that increased free trade reduces the overall diversity of open economy products. The existence of heterogeneity variable trade cost expansion model proves that market segmentation does not necessarily hinder the growth of social welfare. In addition, the increase of variable trade costs will significantly increase the export probability of enterprises, thus the growth mechanism of social welfare will be inconsistent with the Melitz model.
【作者单位】： 清华大学经济管理学院;华东师范大学经济与管理学部经济学院;中国人民大学商学院;中国人民大学经济学院;
【基金】：国家自然科学基金面上项目“中国贸易增值分解与国内价值链延伸”的资助
【分类号】：F270
本文编号：2305878
[Abstract]:Based on the discussion of heterogeneous enterprise trade theory, this paper constructs a general equilibrium model of variable trade cost and productivity heterogeneity, and explains the product diversity of heterogeneous enterprise trade theory. Social welfare and the basic theory of enterprise choice. It is found that the parameter limiting interval of the Melitz model exists under the Pareto distribution of the supreme productivity bound and disappears in the upper bound Pareto distribution. The breakdown of social welfare demonstrates that increased free trade reduces the overall diversity of open economy products. The existence of heterogeneity variable trade cost expansion model proves that market segmentation does not necessarily hinder the growth of social welfare. In addition, the increase of variable trade costs will significantly increase the export probability of enterprises, thus the growth mechanism of social welfare will be inconsistent with the Melitz model.
【作者单位】： 清华大学经济管理学院;华东师范大学经济与管理学部经济学院;中国人民大学商学院;中国人民大学经济学院;
【基金】：国家自然科学基金面上项目“中国贸易增值分解与国内价值链延伸”的资助
【分类号】：F270
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，本文编号：2305878
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