ScholarWorks@중앙대학교

초록

This study examines whether the Environmental Kuznets Curve (EKC) holds for greenhouse gas emissions (CO2, CH4, N2O) in the transportation and warehouse sectors, using country-specific data from international organizations. GDP per capita, export-import ratios, container port traffic, transport services for export-imports, and renewable energy consumption were used as independent variables. A quadratic regression model was used with five-year interval data. The analysis showed most variables were statistically significant, except for a few. The extended EKC revealed an N-shaped curve, with turning points around $8,100andbetween$9,900 and $18,000. The study contributes to sustainable growth research, suggesting the need for more proactive environmental policies. Limitations include difficulty in capturing characteristics of developing or high-income countries, and future research should consider dividing countries by income or adding energy-related transport indicators.

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