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本文的评论集中在中国企业“出口-生产率悖论”产生的原因以及条件上,主要有以下三点意见。第一,有关中国企业“出口-生产率悖论”研究的理论起点基本上来自于Melitz(2003)的研究。该文有两个基本假定:(1)每个国家的出口产品全部在本国生产。也就是说,整个产品价值链都分布在这个国家内部。(2)与国内销售相比,对外出口要面临额外成本。模型得出的基本推论是:只有生产效率高的企业才能够出口,低效率的企业只能在国内生产和销售。在开放贸易的情形下,高效率的企业将获得更多的市场机会,从而扩大生产。相应地,低效率企业将会被淘汰,或者市场机
The comments in this article focus on the causes and conditions of Chinese enterprises “export-productivity paradox ”, mainly including the following three opinions. First, the theoretical starting point for a study of Chinese firms ’export-productivity paradox’ basically comes from the study of Melitz (2003). This article has two basic assumptions: (1) Each country’s export products are all produced in their own country. In other words, the entire product value chain are distributed within this country. (2) Compared with domestic sales, foreign exports are subject to additional costs. The basic conclusion drawn from the model is that only firms with high productivity can export and inefficient firms can only produce and sell domestically. In the context of open trade, more efficient firms will gain more market opportunities and thus expand their production. Accordingly, inefficient enterprises will be eliminated, or the market machine