Document Type : Research Paper
Authors
1 Assistant Professor of Agricultural Economics - University of Sistan and Baluchestan - Zahedan - Iran
2 Associate Professor, Department of Agricultural Economics, University of Sistan and Baluchestan
3 Ph.D student of Agricultural Economics, University of Sistan and Baluchestan
Abstract
The quality of water resources is necessary to protect the environment and public health of humans. The purpose of this research is to investigate the factors affecting water quality using a spatial Durbin model in the period from 2000 to 2021 in selected Asian countries. The results showed that the variables of total population density, gross domestic product, foreign direct investment, commercial openness, legality have direct effects on the water quality of each country. There are also spatial spillover effects on other neighboring countries. GDP has had the most positive and significant impact on water quality in Asian countries. Also, the total population density has the most negative and significant effect on water quality. The variables of commercial openness and foreign direct investment had a positive and significant effect on water quality by 3.06 and 0.16, respectively. The spatial spillover effect of real GDP per capita and foreign direct investment on water quality has been positive and significant. Spatial spillover of legality and effectiveness of the government has had a positive and significant effect on the quality of water in Asian countries by 2.86 and 2.36, respectively.
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