Nexus of Globalization and Environmental Quality: Investigating Heterogeneous Effects through Quantile Regression Analysis
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Faculty of Finance and Banking, Van Lang University, Ho Chi Minh City, Vietnam, e-mail: ha.nguyentran@vlu.edu.vn
Faculty of Finance – Accounting 1, Post and Telecommunications Institute of Technology, Hanoi, Vietnam
Faculty of Mathematics, FPT University, Ho Chi Minh City, Vietnam
Sacombank, 266-268 Nam Ky Khoi Nghia Street, Vo Thi Sau Ward, District 3, Ho Chi Minh City, Vietnam
Department of Business Administration, Chung Yuan Christian University, Taoyuan City, Taiwan
Faculty of Environment, Saigon University, Ho Chi Minh City, Vietnam
Submission date: 2023-05-11
Final revision date: 2023-08-19
Acceptance date: 2023-09-08
Online publication date: 2023-11-21
Publication date: 2024-01-03
Corresponding author
Ha Manh Bui   

Faculty of Environment, Saigon University, 273 An Duong Vuong Street, 700000, Ho Chi Minh, Viet Nam
Pol. J. Environ. Stud. 2024;33(1):767-779
This study examines the effects of globalization on environmental quality, explicitly focusing on the scale, technique, and composition aspects proposed by KOF Swiss Economic Institute. A large sample of 115 developed and developing countries is analyzed to understand how different dimensions of globalization impact environmental degradation at various levels, using the quantile regression method. The results indicate that globalization has a positive effect on emissions at lower and middle quantiles, but at the upper quantiles, the effect becomes negative, based on the distribution of CO2 per capita (CO2PC). Additionally, each dimension of globalization has its influence on emissions: (i) Renewable energy consumption significantly negatively impacts environmental quality across most percentiles, except for the 90th percentile. (ii) Foreign direct investment inflows positively affect environmental quality at lower quantiles but negatively at higher quantiles. (iii) Urbanization initially correlates negatively with environmental degradation at the 50th percentile, but this relationship turns positive at the 75th percentile. Overall, globalization benefits countries facing environmental degradation seriously, while countries maintaining a high quality environment have not benefited much from globalization. These findings offer valuable insights for policymakers in developing effective environmental policies considering diverse economic and environmental conditions across countries.
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