Table 5 Estimation results by quantile regression: selected model
Quantiles | 0.10 | 0.25 | 0.5 | 0.75 | 0.90 | OLS |
|---|---|---|---|---|---|---|
Constant | 9865.556 | 12879.36 | 16433.2 | 19494.19 | 23919.46 | 19595.94 |
\( \frac{NTowns}{Pop} \) | 372.7542 | 310.7989 | 594.6125 | 1329.612 | 2163.313 | 980.2919 |
\( \frac{1}{Pop} \) | 2965.341 | 3612.943 | 1550.574 | 1299.058 | −3512.63 | 5.34297 |
\( \frac{UPo{p}^2}{Pop} \) | −708.287 | −1004.27 | −1298.16 | −1540.59 | −1887.98 | −1590.68 |
\( \frac{UPo{p}^3}{Pop} \) | 20.67388 | 32.16626 | 42.61537 | 53.8526 | 76.49473 | 55.56158 |
\( \frac{UPo{p}^4}{Pop} \) | −0.18161 | −0.31268 | −0.41115 | −0.54328 | −0.83928 | −0.56619 |
\( \frac{RPop}{Pop} \) | −9113.59 | −12080.4 | −15627.1 | −18605.9 | −22888.9 | −18819.8 |
\( \frac{Area}{Pop} \) | 0.12268 | 0.18421 | 0.39747 | 0.27226 | 0.44509 | 0.19418 |
\( \frac{Are{a}^2}{Pop} \) | −2.88E−06 | −2.83E−06 | −7.61E−06 | −4.83E−06 | −7.99E−06 | −2.9E−06 |
\( \frac{Are{a}^3}{Pop} \) | 1.73E−11 | 9.67E−12 | 4.85E−11 | 6.95E−11 | 8.22E−11 | 2.84E−11 |
\( \frac{Are{a}^4}{Pop} \) | −1.77E−17 | 8.49E−18 | −9.67E−17 | −2.65E−16 | −2.77E−16 | −9.6E−17 |
R 2 | 0.46899 | 0.4791 | 0.48777 | 0.48514 | 0.47876 | 0.50135 |