First-Stage Regression | ||||
Variables | Coefficient estimate | t | p > |t| | |
distance | −0.0002*** | −3.06 | 0.002 | |
port | 0.188859*** | 3.40 | 0.001 | |
Δlog GDP | 0.4438* | 1.81 | 0.072 | |
Δsecond | −0.0119** | −2.57 | 0.011 | |
Δthird | −0.0021 | −0.51 | 0.608 | |
Δprice | −0.0016** | −2.34 | 0.020 | |
regional fix effect | Yes | |||
Weak identification test (First stage F statistic) | 12.722 | |||
Under identification test (P-value) | 0.0000 | |||
Minimum eigenvalue statistic | 13.8162 | |||
Observations | 285 | |||
10% maximal IV size: 19.93; 15% maximal IV size: 11.59 | ||||