Evaluating the Relationship between Freight Transport, Economic Prosperity, Urbanization, and CO 2 Emissions: Evidence from Hong Kong, Singapore, and South Korea

Muhammad Shafique, Anam Azam, Muhammad Rafiq and Xiaowei Luo
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Muhammad Shafique: Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong, China
Anam Azam: School of Economics and Management, North China Electric Power University, Beijing 102206, China
Muhammad Rafiq: Department of Electrical Engineering, University of Engineering and Technology, Taxila 47050, Pakistan
Xiaowei Luo: Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong, China

Sustainability, 2020, vol. 12, issue 24, 1-14

Abstract: This paper analyzes the relationship between freight transport, economic prosperity, carbon dioxide (CO 2 ) emissions, energy consumption, and urbanization for three top Asian economies, namely, Hong Kong, Singapore, and South Korea during 1995–2017. For this purpose, we use the augmented Dickey-Fuller test for the stationary of the series, Johansen co-integration approach, and fully modified ordinary least squares and Granger causality model to infer the causal relationship between the study variables. The results show that economic prosperity (GDP) and energy consumption (EC) have a significant impact on freight transport (FT) for all three economies. In addition, the results also manifest the existence of bidirectional causality between GDP and FT in Singapore but a unidirectional causality running from GDP to FT in the case of Hong Kong and South Korea. As a quick policy option, controlling fossil fuel energy consumption in the transport sector may result in a remarkable reduction in CO 2 emissions. The present study provides new insights to decision-makers for designing comprehensive energy and environmental policies for future sustainable freight transport growth in the long run.

Keywords: freight transport; economic prosperity; urbanization; carbon emissions; Granger causality model (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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