Table 2 DID regression models between significant edge areas and hotspot areas
Exponentially-rising stage | Continuously-rising stage | Declining stage | |||||||
|---|---|---|---|---|---|---|---|---|---|
2002 | 2014 | 2015 | 2002 | 2014 | 2015 | 2002 | 2014 | 2015 | |
Intercept | 420.42*** (67.20) | 281.14*** (23.65) | 432.13*** (44.95) | 403.73*** (76.39) | 553.94*** (57.03) | 653.32*** (51.21) | 414.43*** (72.40) | 562.30*** (46.36) | 600.92*** (42.37) |
SIG.EDGE | − 403.60*** (98.25) | − 228.70*** (30.25) | − 339.18*** (53.44) | − 383.75*** (90.38) | − 403.21*** (59.53) | − 438.97*** (67.67) | − 365.33*** (84.57) | − 386.66*** (54.86) | − 354.83*** (48.31) |
TIME* SIG.EDGE (DID estimator) | 44.71 (90.03) | 138.52*** (34.01) | 262.55*** (49.36) | 45.93 (35.47) | 215.12*** (51.32) | 385.08*** (72.08) | 69.78 (40.43) | 133.52^ (68.76) | 146.36* (62.08) |
N | 60 | 139 | 125 | 84 | 124 | 103 | 84 | 112 | 124 |
ρ | 0.015 (0.0296) | 0.072*** (0.0165) | 0.070*** (0.0195) | 0.056* (0.0230) | 0.098*** (0.0154) | 0.068** (0.0231) | 0.055* (0.0249) | 0.123*** (0.0145) | 0.138*** (0.0141) |