“…Are there any differences in the contributions of each factor to the spillover effect? To address these questions, drawing on relevant studies by established scholars of resilient cities [18,19,23], the infrastructure development level [50][51][52][53], and the influencing factors of urban development quality [54][55][56] and based on the principles of scientificity, rationality, and accessibility, we select population density (X1), the economic development level (X2), the urbanization level (X3), the industrial structure (X4), the financial development level (X5), the market consumption level (X6), the infrastructure investment level (X7), and the local government financial expenditure level (X8) as explanatory variables; they are measured by the total population/administrative land area, GDP per capita, the urbanization rate, the proportion of the value added of the tertiary industry in GDP, the proportion of the loan balance of local financial institutions in GDP, the total retail sales of consumer goods per capita, the completed infrastructure investment in the year, and total government financial expenditure, respectively. The spillover effects of UIR in 2010, 2015, and 2019 are verified and analyzed based on traditional ordinary least squares (OLS) linear regression models, SLMs, and SEMs.…”