Table 4. Air transport trade amount analysis result
| Variable | fe | re | ht |
| ln_PERGDP | 0.7897***(0.0495) | 0.8103***(0.0451) | 0.8106***(0.0455) |
| ln_KPERGDP | 1.4702***(0.0538) | 1.4453***(0.0505) | 1.4454***(0.0508) |
| ln_distcap | (omitted) | −1.4923***(0.2858) | −1.5021***(0.3050) |
| ln_area | (omitted) | 0.4690***(0.0610) | 0.4582***(0.0649) |
| ln_airport | (omitted) | 1.1201***(0.1735) | 1.1380***(0.1833) |
| locked | (omitted) | 0.0619(0.3838) | 0.0747(0.4062) |
| OECD | 0.4435***(0.1707) | 0.6112***(0.1604) | 0.5915***(0.1610) |
| APEC | 0.2910*(0.1699) | 0.3071*(0.1642) | 0.3058*(0.1645) |
| ASEAN+3 | 0.7637***(0.1459) | 0.7790***(0.1444) | 0.7764***(0.1443) |
| _cons | −12.3363***(0.3097) | −4.9058*(2.5982) | −4.7105*(2.7740) |
| R2 | 0.50740.22590.3092 | 0.50730.69400.6689 | |
| hausman p-value | 0.0255 | |
| obs | 5240 | 5240 | 5240 |
주1: fe는 고정효과모형, re는 확률효과모형, ht는 하우스만 테일러모형.
주2: *, **, *** 는 각각 10%, 5%, 1% 유의수준에서 유의미한 결과임.
주3: R2는 within, between, overall 순서임.
주4: p-value < 0.01이면 H0 : cov(xi,t, ui) = 0을 기각하여 고정효과모형이 일치추정량임.