Zeros, Quality, and Space: Trade Theory and Trade Evidence
Zeros, Quality, and Space: Trade Theory and Trade Evidence
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DOI：
10.1257/mic.3.2.60
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发表时间：
2011-05-01
影响因子：
2.4
通讯作者：
Harrigan, James
中科院分区：
文献类型：
--
作者：
Baldwin, Richard;Harrigan, James
双边产品层面的数据显示出一些强有力的模式，可用于评估国际贸易理论，特别是“出口零”（与距离和进口商规模相关）和出口单位值（与距离正相关）的空间发生率。我们表明，主要的理论贸易模型至少不能解释其中的一些事实，并提出了一个可以解释所有事实的梅利茨模型的变体。在我们的模型中，高质量企业最具竞争力，异质性质量随着企业异质性成本的增加而增加。（凝胶f11， f14, f40）
Bilateral, product-level data exhibit a number of strong patterns that can be used to evaluate international trade theories, notably the spatial incidence of "export zeros" (correlated with distance and importer size), and of export unit values (positively related to distance). We show that leading theoretical trade models fail to explain at least some of these facts, and propose a variant of the Melitz model that can account for all the facts. In our model, high quality firms are the most competitive, with heterogeneous quality increasing with firms' heterogeneous cost. (JEL F11, F14, F40)