Using the economic development of regions and cities along the Shanghai-Kunming railway line as an example, the paper carries out an empirical study on the spatial spillover effects of infrastructure investment in China. It has been found that the infrastructure investment along Shang-Kunming line not only produces positive spatial spillover effects, such as promoting the region’s transportation capacity, expanding trading volume, adjusting industrial structure, and facilitating economic development, but also leads to certain negative spatial spillover effects like unbalanced flow of production elements among the region, and unbalanced economic growth.
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