From: Measuring aggregate trade costs and its empirical effects on manufacturing export composition in China
Dependent variable: χ it
1
2
3
4
c i × T t
−2.860***
−5.120***
−0.681***
−0.327***
(−8.11)
(−8.41)
(-3.03)
(−3.13)
Industrial fixed effect
Yes
Time-fixed effect
Observation
153
238
R 2
0.689
0.6001
0.7048
0.7304