Table 5 Regression results with F (longitude, latitude)
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 | 0.195*** (0.0474) | 0.187*** (0.0479) | 0.194*** (0.0512) | 0.189*** (0.0513) | 0.239*** (0.0623) |
F (longitude, latitude) | Cubic | Cubic | Cubic | Cubic | Cubic |
R 2 | 0.464 | 0.440 | 0.542 | 0.466 | 0.401 |
Observations | 2043 | 1599 | 1371 | 1122 | 904 |