[Retracted] The Impact of Innovative Industrial Cluster Policy on Regional Innovation: Evidence from a Quasi-Natural Experiment in China
Table 5
The result of heterogeneity test.
Variable
A
B
C
D
E
F
G
H
Geographical location
Administrative level
Resource endowment
East
Non-east
—
High
Low
—
Resource-based
Non-resource-based
treat × post
0.4494 (4.15)
0.4366 (2.99)
0.5981 (8.11)
0.2323 (2.05)
0.5984 (5.22)
0.6201 (5.38)
0.1617 (0.74)
0.5106 (5.02)
treat × post × location
−0.1798 (−1.95)
treat × post × level
−0.6146 (−3.78)
treat × post resource
_cons
6.1721 (0.95)
−6.2203 (−2.95)
−0.6757 (−0.56)
0.2027 (0.06)
−8.9415 (−4.02)
−5.3100 (−2.38)
−9.4946 (−4.11)
0.4624 (0.12)
Controls
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
City FE
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Year FE
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
N
1020
2172
3192
336
2856
3192
1284
1908
R2
0.8192
0.7228
0.7704
0.8644
0.7486
0.7526
0.7213
0.7716
Notes. t-statistics are in parentheses; ,, statistical significance at the 10%, 5%, and 1% level, respectively; controls represent control variables; _cons represent constant terms; N represents the number of samples.
