Table 2 Baseline results.

From: Impact of intellectual property protection on enterprise supply chain resilience: empirical evidence from China’s intellectual property pilot and demonstration city policy

Variable

Chain

(1)

(2)

(3)

(4)

Did

0.0022**

0.0021**

0.0020**

0.0105***

(0.001)

(0.001)

(0.001)

(0.001)

Size

−0.0001

−0.0004

−0.0004

0.0074***

(0.001)

(0.001)

(0.001)

(0.001)

Npg

−0.0000***

−0.0000***

−0.0000***

−0.0000***

(0.000)

(0.000)

(0.000)

(0.000)

Der

0.0000

0.0000

0.0000

−0.0001

(0.000)

(0.000)

(0.000)

(0.000)

Cap

0.0002**

0.0001**

0.0001*

0.0001*

(0.000)

(0.000)

(0.000)

(0.000)

Roe

0.0095***

0.0091***

0.0091***

0.0010

(0.003)

(0.003)

(0.003)

(0.003)

lnFl

0.0012***

0.0014***

0.0014***

0.0003

(0.000)

(0.000)

(0.000)

(0.000)

lnBoard

−0.0025

−0.0003

−0.0003

−0.0174***

(0.005)

(0.005)

(0.005)

(0.006)

Tobinq

0.0004

−0.0006*

−0.0006

−0.0007*

(0.000)

(0.000)

(0.000)

(0.000)

Dual

−0.0002

−0.0001

−0.0002

−0.0008

(0.001)

(0.001)

(0.001)

(0.001)

lnPop

−0.0008

0.0021*

0.0021

0.0060***

(0.002)

(0.001)

(0.001)

(0.002)

lnFiscal

−0.0021

0.0052*

0.0053*

−0.0123***

(0.003)

(0.003)

(0.003)

(0.003)

lnScien

0.0000

0.0019

0.0019

0.0050***

(0.002)

(0.001)

(0.001)

(0.002)

Eco

0.0000

−0.0000

−0.0000

0.0000

(0.000)

(0.000)

(0.000)

(0.000)

lnFin

0.0002

−0.0077***

−0.0077***

0.0117***

(0.003)

(0.003)

(0.003)

(0.003)

_cons

0.0548**

0.0649***

0.0647***

 

(0.023)

(0.021)

(0.022)

 

Year fixed

Yes

No

No

No

Company fixed

Yes

Yes

No

No

City fixed

Yes

No

Yes

No

Company-year fixed

No

No

Yes

Yes

City-year fixed

No

Yes

No

Yes

N

10281

10281

10281

10281

Adj. R2

0.6412

0.6376

0.6381

0.9009

  1. ***, **, and * indicate significance at the 1%, 5%, and 10% levels, respectively, and the enterprise-level clustering standard errors are in parentheses. All regressions below simultaneously control for company-year fixed effects and city-year fixed effects. Unless otherwise specified, the same applies below.
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