Variables

symbols

Descriptions

Dependent Variable

IPATENT

The natural logarithm is taken after the number of patent applications for inventions of enterprises is added to 1

Independent Variables

SUB

1 = Get Government Subsidies, 0 = No government subsidies

GRO

Grouping variables of R&D tax super-deduction Policy

POL

1 = Treatment group, 0 = Control group

Control Variables

ASSET

Logarithm of total assets of a company

TAXR

Enterprise income tax rate

LEV

Asset-liability ratio

GROWTH

Income growth rate

AGE

Sample year minus year of establishment plus 1

CASH

Net operating cash flow divided by final total assets