Spatial Agglomeration of Urban Intelligent Development and Human Capital Mismatch: Evidence from Local Moran's I Scatter Plots

To gain a more intuitive understanding of the spatial agglomeration between cities, a local Moran index scatter plot was constructed to examine the mismatch between urban intelligent development and human capital. The results, as depicted in Figures 1 and 2, indicate that in representative years, the majority of urban intelligent development and human capital mismatch were clustered around the origin, demonstrating clear spatial agglomeration characteristics and further supporting the presence of spatial spillover effects. Specifically, most cities' intelligent development was concentrated in the first and third quadrants, indicating H-H agglomeration and L-L agglomeration, which is in line with both theoretical and practical expectations. Furthermore, the findings suggest that intelligent development is more likely to occur through regional cooperation rather than isolated development. In terms of human capital mismatch, most cities were concentrated in the second and fourth quadrants, indicating a negative spatial correlation between urban human capital mismatch and a trade-off relationship between neighboring cities in terms of human capital allocation.