In Search of 'W'
In Search of 'W'
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DOI：
10.1080/17421772.2011.586721
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发表时间：
2011-09-01
影响因子：
2.3
通讯作者：
Kravtsova, Victoria
中科院分区：
文献类型：
--
作者：
Harris, Richard;Moffat, John;Kravtsova, Victoria
本文讨论了构建空间权重矩阵W的标准方法，以及根据W的潜在错误规范使用这些方法的含义。然后，我们查看了最近文献中测量W的尝试，包括：贝叶斯(搜索‘最佳匹配’)；非参数技术；使用空间相关性来估计W；其他迭代技术；以及替代方法。最后，基于对决定英国企业R&D支出的空间滞后模型的估计，提供了一个例证，发现不同结构的W矩阵产生不同的空间溢出估计。
The paper discusses the standard approaches in constructing the spatial weights matrix, W, and the implications of using such approaches in terms of the potential mis-specification of W. We then look at more recent attempts to measure W in the literature, including: Bayesian (searching for 'best fit'); non-parametric techniques; the use of spatial correlation to estimate W; other iteration techniques; and alternative approaches. Lastly, an illustration is provided based on estimating spatial lag models determining establishment level R&D spending in the UK, finding that differently constructed W matrices produce different estimates of spatial spillovers.