• Nuclear Engineering and Technology
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• 제53권8호
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• pp.2746-2752
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• 2021

The environmental effects of China's nuclear energy consumption in a dynamic framework of the pollution haven hypothesis are examined. This study uses a dynamic autoregressive distributed lag simulation approach. Empirical evidence confirms that the pollution haven hypothesis does not exist for China; i.e., foreign direct investment plays a promising role in influencing environmental outcomes. Furthermore, empirical results concluded positive contribution of nuclear energy in pollution mitigation. From the results it is expected that encouraging foreign investment to increase generation of nuclear energy would benefit environmental quality by reducing CO₂ emissions.

• 환경정책연구
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• 제12권3호
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• pp.97-122
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• 2013

우리나라의 1971년~2009년 시계열자료를 이용하여 소득 및 에너지소비와 $CO_2$ 배출량 간 동태적 관계를 분석한다. 자기시차분포(ARDL: Autoregressive Distributed Lag) 방법을 이용하여 소득 및 에너지소비와 $CO_2$ 배출량의 장 단기적 관계를 분석하고, Toda and Yamamoto 방법을 사용하여 주요 변수들 간 인과성을 분석한다. 추정 결과 에너지소비 및 소득과 $CO_2$ 배출량 간 장기균형관계가 존재하고 일시적 외생충격에 의해 불균형이 발생하더라도 빠르게 균형으로 회복되는 것으로 나타났다. 소득과 $CO_2$ 배출량은 장 단기적으로 N자형의 관계로 EKC 가설은 성립하지 않았다. $CO_2$ 배출량에 대한 에너지소비 장 단기탄력성은 양(+)이고, 에너지소비 장기탄력성이 단기탄력성보다 크게 나타났다. 인과성 측면에서 에너지소비량과 $CO_2$ 배출량은 쌍방향의 인과성이 존재하고, $CO_2$ 배출량 및 에너지소비는 소득에 일 방향의 인과성이 존재하는 반면에 그 역은 성립하지 않았다. 에너지소비가 직 간접적으로 소득보다 $CO_2$ 배출의 예측에 중요한 변수일 가능성을 제시한다.

• Nuclear Engineering and Technology
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• 제54권10호
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• pp.3682-3694
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• 2022

The expansion of a country's ecological footprint generates resources for economic development. China's import bill and carbon footprint can be reduced by investing in green transportation and energy technologies. A sustainable environment depends on the cessation of climate change; the current study investigates nuclear energy efficiency, economic complexity, air transportation, and industrial improvement for reducing environmental footprint. Using data spanning the years 1983-2016, the dynamic autoregressive distributed lag simulation method has demonstrated the short- and long-term variability in the impact of regressors on the ecological footprint. The study findings revealed that economic complexity in China had been found to have a statistically significant impact on the country's ecological footprint. Moreover, the industrial improvement process is helpful for the ecological footprint in China. In the short term, air travel has a negative impact on the ecological footprint, but this effect diminishes over time. Additionally, energy innovation is negative and substantial both in the short and long run, thus demonstrating its positive role in reducing the ecological footprint. Policy implications can be extracted from a wide range of issues, including economic complexity, industrial improvement, air transportation, energy innovation, and ecological impact to achieve sustainable goals.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.21-31
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• 2020

This study investigates the dynamic effects of economic development, international cooperation, electricity consumption, and political risk on the escalation of CO₂ emission in Vietnam. We adopted autoregressive distributed lag model and Granger causality method to examine the interaction between CO₂ and various economic and political factors, including foreign direct investment, trade openness, economic growth, manufacture, electricity consumption, and political risk in Vietnam since the economic revolution in 1986. The findings reflect opposite influence between these factors and the level of CO₂ in the intermediate and long-term durations. Accordingly, foreign direct investment and CO₂ emission have a bidirectional relationship, in which foreign direct investment accelerates short-term CO₂ emission, but reduces it in the long run through an interactive mechanism. Moreover, economic development increases the volume of CO₂ emission in both short and long run. There was also evidence that political risk has a negative effect on the environment. Overall, the findings confirm lasting negative environmental effects of economic growth, trade liberalization, and increased electricity consumption. These factors, with Granger causality, mutually affect the escalation of CO₂ in Vietnam. In order to control the level of CO₂, more efforts are required to improve administrative transparency, attract high-quality foreign investment, and decouple the environment from economic development.

• Nuclear Engineering and Technology
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• 제54권5호
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• pp.1664-1673
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• 2022

Achieving sustainable development requires an increasing share of green technologies. World energy demand is expected to rise significantly especially in developing economies. The increasing energy demands will be entertained with conventional energy sources at the cost of higher emissions unless eco-friendly technologies are used. This study examines the asymmetric effects of nuclear energy on carbon emissions for Pakistan from 1974 to 2019. Augmented Dickey-Fuller (ADF) and Phillips Perron (PP) unit root tests suggest that variables are integrated of order one and bound test of Autoregressive Distributed Lag (ARDL) and nonlinear ARDL confirm a long-run relationship among selected variables. The ARDL, Fully Modified Ordinary Least Squares (FMOLS), and Dynamic Ordinary Least Squares (DOLS) results show that the coefficient of nuclear energy has a negative and significant impact on emissions in both short and long run. Further, the NARDL finding shows that there exists an asymmetric long-run association between nuclear energy and CO₂ emissions. The vector error correction method (VECM) results indicate that there exists a bidirectional causal relationship between nuclear energy and carbon emissions in both the short and long run. Additionally, the impact of nuclear energy on ecological footprint has been examined and our findings remain robust.