Table 5. Air transport import amount analysis
Variable | fe | re | ht |
ln_GDP | -6.353***(0.840) | 0.025(0.362) | -4.721***(0.743) |
ln_PERGDP | 7.364***(0.790) | 1.535***(0.365) | 5.863***(0.703) |
ln_KGDP | 8.705***(2.723) | 5.124*(2.804) | 7.819***(2.706) |
ln_KPERGDP | -8.045***(2.992) | -4.858(3.096) | -7.256**(2.976) |
ln_oilprice | -0.093(0.063) | -0.091(0.066) | -0.092(0.063) |
ln_exchanges | -0.012(0.058) | 0.006(0.058) | -0.012(0.058) |
ln_area | (omitted) | 0.190(0.248) | 2.197***(0.848) |
ln_airport | (omitted) | 1.109***(0.408) | 4.445***(1.364) |
_cons | -57.598(45.012) | -101.135**(46.529) | -97.964**(45.212) |
R2 | 0.5230.3580.192 | 0.4870.7150.631 | |
Hausman p-value | 0.000 | |
obs | 747 | 747 | 747 |
주1: fe는 고정효과모형, re는 확률효과모형, ht는 하우스만 테일러모형.
주2: *, **, *** 는 각각 10%, 5%, 1% 유의수준에서 유의미한 결과임.
주3: R2은 within, between, overall 순서임.
주4: p-value<0.01이면 H0 : cov(xi,t, ui = 0을 기각하여 고정효과모형이 일치추정량임.