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Frontiers of Business Research in China

Table 11 Robustness Test: Discretization of Independent Variables

From: The effect of domestic and foreign trade coordination on technological innovation: complements or substitutes?

 

1–Patent

2–Invention

3–Utility + Design

Trade

53040**

15712***

37328**

(19456)

(4795)

(16013)

PGDP

12526***

5497***

7029***

(2077)

(1589)

(835.7)

Profit

3.106***

0.989***

2.116***

(0.473)

(0.194)

(0.291)

FDI

335.7***

189.8**

145.9

(87.52)

(79.04)

(91.68)

Govern

−64342***

−30805**

−33537***

(12109)

(10112)

(5340)

C

−2.1E + 5**

−65841***

−1.5E + 5**

(73640)

(17662)

(61989)

Time Control Variable

Control

Control

Control

Individual Fixed

Yes

Yes

Yes

Driscoll-Kraay SE

Yes

Yes

Yes

  1. Standard Error appears in parentheses. *p < 0.10, **p < 0.05, ***p < 0.01. The tests are the same as in Table 6
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