Spatial Spillover Effects of Economic Growth Based on High-Speed Railways in Northeast China

Table 1

Data description and statistics.

Name	Definition	Mean	Standard deviation	Min	Max
Dependent variable
GDP	Gross Domestic Product (million yuan)	3.234 ∗ 10^4	2.537 ∗ 10^4	3.781 ∗ 10^3	1.774 ∗ 10^5
Independent variables
INV	Fixed asset investment (million yuan)	3.668 ∗ 10^4	6.629 ∗ 10^4	233.570	4.427 ∗ 10^5
GOV	Government expenditure (10 thousand yuan)	4.647 ∗ 10^5	7.970 ∗ 10^5	2.901 ∗ 10^4	5.703 ∗ 10^6
URB	Urban population proportion (%)	37.8	77.1	10.6	81.8
EMP	Employee number (million person)	21.404	0.106	1.007	197.371
ACC	City accessibility calculated by cost, travel time, and city scale	362.889	129.839	77.1939	659.36