随着空间经济学的兴起，城市经济学家开始用经济学分析工具考察总部经济集聚原因。

With the rise of Spatial economics, urban economists began to study headquarters concentration with economics analytical tool.

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近年来，国外空间经济学和经济地理学的大量研究已经证明了集聚可提高劳动生产率并促进就业。

In recent years, many studies of spatial economics and economic geography have proved that aggregation can improve labor productivity and promote employment at abroad.

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我们将探索把空间经济学技术和那些被用在项目评估文学中的方法结合起来的新方法，如“异中求异”的方法和倾向匹配划分方法。

We will explore new methods that combine spatial econometric techniques and methods used in the program evaluation literature such as difference-in-differences and propensity score matching methods.

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我们将探索把空间经济学技术和那些被用在项目评估文学中的方法结合起来的新方法，如“异中求异”的方法和倾向匹配划分方法。

We will explore new methods that combine spatial econometric techniques and methods used in the program evaluation literature such as difference-in-differences and propensity score matching methods.

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