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An investigation of environmental Kuznets hypothesis in Asian Productivity Organization (APO) using three air pollution indicators

Year: 1399
COI: JR_JHE-4-8_003
Language: EnglishView: 18
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hamid amirnejad - ۱. , professor of Natural Resources Economics, College of Agricultural Engineering, Sari University of Agricultural Sciences and Natural Resources
Maryam Asadpour kordi - phd of Natural Resources Economics, , Sari University of Agricultural Sciences and Natural Resources


The threat of climate change over the past decades has become more prominent among environmental experts. As a result, economists and environmental researchers are more likely to pursue environmentally-friendly economic growth. The present study examines the variables of open trade, population, GDP, and its square to study the Kuznets environmental hypothesis regarding carbon dioxide, methane, and nitrogen oxide emissions in three separate equations, which have, to the authors’ best knowledge, been rarely addressed in the literature. The study period was from ۱۹۹۰ to ۲۰۱۶ conducted on ۲۰ countries in the Asian Productivity Organization (APO). This hypothesis has not been studied regarding air pollution among APO members states. The panel ARDL method was used regarding the panel data applied for the structure of the research data. According to the results, the Kuznets environmental hypothesis was approved as reversed U for carbon dioxide and methane gases in the long run, but not for nitrous oxide. The short-term results also indicate the rejection of the Kuznets environmental hypothesis among the studied countries. The variable of trade had a negative correlation with the emission of all three greenhouse gases. Also, the earning elasticity estimated for CO۲, N۲O, and CH۴ at ۰.۴, ۰.۳۸ and ۰.۰۴, respectively show that the effect of GDP growth on CO۲ emissions is higher than that of N۲O and CH۴ emissions, indicating the importance of CO۲, which causes more air pollution than other greenhouse gases and will have an important impact on the quality of the environment. Therefore, it is recommended to consider more measures for curbing carbon dioxide than for other greenhouse gases to prevent its emissions.


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amirnejad, hamid and Asadpour kordi, Maryam,1399,An investigation of environmental Kuznets hypothesis in Asian Productivity Organization (APO) using three air pollution indicators,

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