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水安全和粮食安全是我国社会发展的关键,而虚拟水同时连接着粮食和水资源。本文应用机会成本和比较优势理论阐述虚拟水贸易,同时详细阐述了粮食安全与国家安全、经济增长、生活质量的提高之间的关系。在此基础上,提出了我国在进行虚拟水贸易时应考虑虚拟土地、虚拟技术、虚拟劳动力以及虚拟资金等因素。本文对国家多目标的评价、国际交易利润的计算和有限资源的使用提供了有效的理论依据。
Water security and food security are the keys to our social development, while virtual water connects both food and water resources. This article uses the opportunity cost and comparative advantage theory to elaborate the virtual water trade, and elaborates the relationship between food security and national security, economic growth and quality of life in detail. On this basis, we put forward that we should consider such factors as virtual land, virtual technology, virtual workforce and virtual funds when conducting virtual water trade in our country. This paper provides an effective theoretical basis for the evaluation of the multi-objectives of the country, the calculation of the profit of international transactions and the use of limited resources.