Table 3 Estimation results by OLS
Coefficient | t value | Robust t value | |
|---|---|---|---|
Constant | 19860.4 | 23.842 | 10.526 |
\( \frac{NTowns}{Pop} \) | 1002.82 | 7.980 | 4.573 |
\( \frac{1}{Pop} \) | 115.802 | 0.090 | 0.005 |
\( \frac{UPo{p}^2}{Pop} \) | −1621.85 | −13.424 | −6.543 |
\( \frac{UPo{p}^3}{Pop} \) | 56.5807 | 10.917 | 5.849 |
\( \frac{UPo{p}^4}{Pop} \) | −0.57576 | −9.4678 | −5.485 |
\( \frac{RPop}{Pop} \) | −19200.8 | −18.218 | −8.712 |
\( \frac{RPo{p}^2}{Pop} \) | 0.095896 | 0.006 | 0.003 |
\( \frac{RPo{p}^3}{Pop} \) | 0.084069 | 0.387 | 0.273 |
\( \frac{RPo{p}^4}{Pop} \) | −0.00066 | −0.710 | −0.637 |
\( \frac{Area}{Pop} \) | 0.178648 | 1.580 | 0.051 |
\( \frac{Are{a}^2}{Pop} \) | −2.5E−06 | −0.777 | −0.021 |
\( \frac{Are{a}^3}{Pop} \) | 2.58E−11 | 0.810 | 0.021 |
\( \frac{Are{a}^4}{Pop} \) | −8.9E−17 | −0.960 | −0.024 |
Adj R 2 | 0.4987 | ||
LM-hetero | 85.507 | ||
RESET | 52.927 | ||
Jarque–Bera | 75719.2 |