Does High-Speed Rail Promote Enterprises Productivity? Evidence from China

Table 2

Descriptive statistics of key variables.

Variables	Variable Definition	Obs.	Mean	SD	Min	Max
ln_persale	the logarithm of sales per capita	2885284	5.5744	1.1042	-8.1198	16.1162
d_hsr	Whether or not HSR in operation	2885284	0.3831	0.4861	0.0000	1.0000
ln_ACCxita	Market access	2885284	7.3269	5.2071	0.0000	11.4301
ln_scale	enterprises scale	2885284	9.9535	1.5286	0.0000	20.6717
exportrate	the proportion of exports	2885284	0.1878	23.8453	0.0000	1816.6250
debtratio	debt ratio	2885284	0.7334	3.1433	371.1333	4838.3333
age	survival time	2885284	8.7884	9.2935	1.0000	299.0000
ln_pop	population size	2885284	6.2484	0.6020	2.7955	8.1192
ln_gdp	GDP	2885284	16.7895	1.0791	12.6690	19.1909
ln_fdi	foreign investment	2885284	11.1769	1.8512	0.0000	14.3360
ln_peredu	education level	2885284	-4.3437	0.3098	-6.3973	-3.3298
ln_roadrship	road passenger traffic	2885284	9.2842	1.0029	4.4067	12.5657
ln_airrship	air passenger traffic	2885284	8.4989	7.2057	0.0000	19.4957