6.4 Discussion
107
Table 6.2
Multiple regression of log(ESRs) on three log-transformed variables
Log (ESR)
log(GDP)
log(RWR)
log(PD)
Model fit
b
SE
p
b
SE
p
b
SE
p
R 2
F
p’
Carbon
0.658
0.049
0.000
−0.149
0.061
0.023
-0.110
0.055
0.055
0.889
64.226
0.000
Water
0.054
0.050
0.290
−1.037
0.063
0.000
-0.097
0.056
0.097
0.963
209.248
0.000
Land
0.128
0.098
0.204
−0.299
0.123
0.023
0.275
0.109
0.019
0.698
18.524
0.000
b:
regression coefficient; SE:
standard error; p:
the p-value
of the t-test
for
β = 0; R 2
: the coefficient of determination of the regression model; F: F-statistic; p’:
the significance of the overall model