Table 4. Air transport export amount analysis
Variable | fe | re | ht |
ln_GDP | -4.431***(0.790) | 0.879***(0.225) | -2.691***(0.658) |
ln_PERGDP | 5.526***(0.744) | 0.398*(0.239) | 3.908***(0.624) |
ln_KGDP | 10.102***(2.563) | 7.692***(2.607) | 9.195***(2.540) |
ln_KPERGDP | -10.175***(2.816) | -7.926***(2.883) | -9.361***(2.795) |
ln_oilprice | -0.088(0.060) | -0.084(0.061) | -0.087(0.059) |
ln_exchanges | -0.042(0.055) | -0.007(0.050) | -0.041(0.054) |
ln_area | (omitted) | 0.133(0.149) | 1.695***(0.648) |
ln_airport | (omitted) | -0.079(0.250) | 2.310**(1.045) |
_cons | -106.626**(42.362) | -150.523***(43.310) | -140.253***(42.232) |
R2 | 0.4590.6180.275 | 0.4220.8380.670 | |
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.