摘要翻译：
本文运用新的经济地理学模型对葡萄牙各地区的集聚过程进行了分析。在这些模型中，基本思想是制造业规模收益递增和运输成本低的地方，就有集聚。作为总结结论，通过这项工作证明了葡萄牙地区存在规模收益递增和运输成本低的现象，因此葡萄牙存在集聚现象。
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英文标题：
《The Importance of Increasing Returns to Scale in the Process of
  Agglomeration in Portugal: A Non-linear Empirical Analysis》
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作者：
Vitor Joao Pereira Domingues Martinho
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最新提交年份：
2011
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分类信息：

一级分类：Quantitative Finance        数量金融学
二级分类：General Finance        一般财务
分类描述：Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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英文摘要：
  With this work we try to analyse the agglomeration process in the Portuguese regions, using the New Economic Geography models. In these models the base idea is that where has increasing returns to scale in the manufactured industry and low transport costs, there is agglomeration. Of referring, as summary conclusion, that with this work the existence of increasing returns to scale and low transport cost, in the Portuguese regions, was proven and as such the existence of agglomeration in Portugal.
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PDF链接：
https://arxiv.org/pdf/1110.5538