| (1) | (2) | (3) | (4) | (5) | (6) |
| 2001-2003 | 2004-2007 | ||||
Whole | East | Midwest | Whole | East | Midwest | |
| per capita land transfer area as IV (the second stage) | |||||
hp | 0.009 | 0.069 | −0.000 | −0.006*** | −0.006* | 0.005 |
| (0.76) | (0.57) | (−0.21) | (−2.61) | (−1.92) | (1.62) |
Constantterm | −52.989** | −215.991 | 10.769*** | 18.475*** | 15.141 | 10.663*** |
| (−2.52) | (−0.68) | (2.81) | (3.09) | (1.02) | (2.65) |
Observations | 493 | 195 | 298 | 875 | 357 | 518 |
Within R2 | 0.365 |
| 0.075 | 0.720 | 0.744 |
|
| last land transfer area as IV (the second stage) | |||||
hp | −0.001 | −0.026 | −0.000 | −0.007*** | −0.008** | 0.004 |
| (−0.09) | (−0.87) | (−0.21) | (−3.28) | (−2.23) | (1.51) |
Constant term | −27.744* | 59.285 | 10.762*** | 19.145*** | 16.082 | 11.784*** |
| (−1.75) | (0.78) | (2.81) | (3.23) | (1.08) | (3.46) |
Observations | 493 | 195 | 298 | 883 | 355 | 528 |
Within R2 | 0.363 | 0.587 | 0.075 | 0.719 | 0.746 | 0.120 |