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基于2019年和2024年西南地区512个县级单元数据,并结合2014—2024年市级尺度面板数据,运用Moran’sI、LISA(局部空间自相关指标)和空间计量模型分析交通基础设施与区域经济发展的空间关系。结果表明:交通基础设施与人均GDP均存在显著空间集聚;二级至四级公路在县级尺度上表现出较稳定的本地关系,一级公路在2024年更多体现为空间间接效应,并在市级面板模型中表现出较稳定的正向关系;铁路密度未表现出稳定独立的影响。交通基础设施与经济发展之间的关系具有空间依赖、类型差异和尺度差异。

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