Gap | (1) | (2) | (3) | (4) | (5) |
---|---|---|---|---|---|
Sample range | Less than 200 km | Less than 150 km | Less than 125 km | Less than 100 km | Less than 75 km |
Transfer | 0.159*** (0.0448) | 0.145*** (0.0458) | 0.155*** (0.0489) | 0.173*** (0.0510) | 0.189*** (0.0617) |
F (distance) | Cubic | Cubic | Cubic | Cubic | Cubic |
R 2 | 0.549 | 0.537 | 0.524 | 0.540 | 0.545 |
Observations | 1894 | 1480 | 1273 | 1048 | 850 |
Controls | Yes | Yes | Yes | Yes | Yes |