Tax Incentive Policy and Enterprise Innovation: From Enterprise Heterogeneous Perspective

Table 1

Descriptive statistics of main variables.

Variable	Mean	sd	min	p50	Max
Taxincen	0.119	0.0589	0.000424	0.114	0.250
RDexpense	1.446e+08	3.624e+08	26269	5.745e+07	5.484e+09
Patent	43.70	83.50	0	20	882
Invention	14.90	28.70	0	6	407