Table 2. Estimated parameters values associated with three pollutants obtained
from the one way fixed effects model.
Specification |
SCI |
SCI |
SCI |
Population |
F- |
R2 | |
Nitrogen |
Quadratic |
-0.615 |
2.774* |
N/A |
.00063 |
___VV 16.75 |
.685 |
(0.74) |
(4.20) |
(.84) | |||||
Cubic |
3.460* |
-8.428* |
7.050* |
0.0008 |
14.74** |
0.694 | |
(2.55) |
(2.77) |
(3.76) |
(1.09) | ||||
Phosphorus |
Quadratic |
-0.615* |
0.496* |
N/A |
0.00009 |
25.87** |
0.74 |
(1.99) |
(2.03) |
(0.32) | |||||
Cubic |
-0.257 |
-0.488 |
0.619 |
0.0001 |
25.76** |
0.743 | |
(0.50) |
(0.43) |
(0.88) |
(0.38) | ||||
Dissolved |
Quadratic |
0.878 |
0.116 |
N/A |
-0.0026 |
26.27** |
0.769 |
(0.27) |
(0.04) |
(0.86) | |||||
Oxygen |
Cubic |
1.544 |
-1.716 |
1.153 |
-0.0026 |
26.22** |
0.769 |
(0.28) |
(0.14) |
(0.15) |
(0.84) |
1 Values inside the parentheses indicate t-statistics. * represents value is significant at
5%.
23
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