Wheat Self-Sufficiency, Water Restriction and Virtual Water Trade in Iran

Hmaed Najafi Alamdarlo (), Fariba Riyahi and Mohamad Hasan Vakilpoor
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Hmaed Najafi Alamdarlo: Tarbiat Modares University
Fariba Riyahi: Tarbiat Modares University
Mohamad Hasan Vakilpoor: Tarbiat Modares University

Networks and Spatial Economics, 2019, vol. 19, issue 2, No 6, 503-520

Abstract: Abstract Sustainable food security is one of the policy-making targets in Iran, but water scarcity has always been a challenge to its actualization. Regarding this point, offering policies to address this challenge is essential. On the other hand, wheat is the most important commodity in the food baskets of Iranians, and due to the lack of equality in the supply and demand among the regions, a large amount of wheat is displaced every year. The displacement of wheat has resulted in virtual water trade among the regions and could be a possible solution to manage the water crisis in Iran. With respect to the necessity of research, the present study investigated the effects of economic policies on virtual water trade for wheat using a spatial equilibrium model. Therefore, the aim of this study was to investigate the pattern of virtual water trade flow and welfare changes which resulted from making different economic policies in the wheat market. The results showed that the wheat self-sufficiency policy reduces the total amount of virtual water trade, and will increase pressure on the water resources of Iran. The policy of paying tax and receiving subsidies also significantly affect the flow of virtual water trade. But that happens best when tax revenues are equal to the payment of subsidies.

Keywords: Wheat; Spatial equilibrium model; Virtual water trade; Self-sufficiency; Water scarcity (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s11067-018-9383-4

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