标题： 经济距离在空间增强的索洛-斯旺增长模型中的证据与策略 显示英文标题

标题： Evidence and Strategy on Economic Distance in Spatially Augmented Solow-Swan Growth Model

摘要： 经济学家对增长理论的兴趣有着悠久的历史（Harrod，1939；Domar，1946；Solow，1956；Swan 1956；Mankiw，Romer和Weil，1992）。最近，从新古典增长模型出发，Ertur和Koch（2007）开发了带有外生空间权重矩阵的时空增强的索洛-斯旺增长模型（$W$）。虽然外生$W$假设可能仅在地理/物理距离的情况下成立，但当经济/社会距离起作用时可能不成立。使用涵盖1960-2010年的宾夕法尼亚世界表版本7.1，我进行了稳健的Rao得分检验（Bera，Dogan和Taspinar，2018）以确定$W$是否为内生的，并使用最大似然估计（Qu和Lee，2015）。主要发现是，在外生$W$的情况下，Ertur和Koch（2007）中物质资本外部性和空间外部性（技术相互依赖性）的显著性和积极效应不再存在，但它们在内生$W$模型中仍然存在。我还发现了一种实证策略，即在数据近年来受到1996-2010年全球金融危机严重冲击时应使用哪种经济距离。 显示英文摘要

摘要： Economists' interests in growth theory have a very long history (Harrod, 1939; Domar, 1946; Solow, 1956; Swan 1956; Mankiw, Romer, and Weil, 1992). Recently, starting from the neoclassical growth model, Ertur and Koch (2007) developed the spatially augmented Solow-Swan growth model with the exogenous spatial weights matrices ($W$). While the exogenous $W$ assumption could be true only with the geographical/physical distance, it may not be true when economic/social distances play a role. Using Penn World Table version 7.1, which covers year 1960-2010, I conducted the robust Rao's score test (Bera, Dogan, and Taspinar, 2018) to determine if $W$ is endogeonus and used the maximum likelihood estimation (Qu and Lee, 2015). The key finding is that the significance and positive effects of physical capital externalities and spatial externalities (technological interdependence) in Ertur and Koch (2007) were no longer found with the exogenous $W$, but still they were with the endogenous $W$ models. I also found an empirical strategy on which economic distance to use when the data recently has been under heavy shocks of the worldwide financial crises during year 1996-2010.