摘要
本文基于我国大豆供给的Stackelberg均衡市场,探讨转基因大豆进口贸易禁令对大豆市场均衡、生产者福利、消费者福利的影响,以及谁是最终受益者与禁令实行的机会成本。研究表明,长期分析中,禁令的实行没有帮助传统大豆生产者,损害了消费者福利,真正受益的是土地租金等生产要素。此外,通过转基因大豆进口贸易虚拟耕地的测算,可以判断禁令的实行严重威胁了我国粮食安全。最后,基于国家粮食安全、生产者和消费利益视角,本文从实施有效的虚拟耕地战略、加强对进口转基因大豆的安全审批、严格落实强制性标签制度和加强转基因技术的风险评估四个方面提出了建议。
Based on the Stackelberg＇s equilibrium in China＇s soybean suppli- er markets, this paper analyzes the effect of banning on import of genetically modified soybean on China＇s soybean market equilibrium, producer surplus, con- sumer welfare, the ultimate beneficiaries and opportunity cost of the regulation. The study shows the trade ban would not help soybean producers in China in the long run, and the ban would impair consumer welfare. The actual beneficia- ries from the ban are prices of production factors. Furthermore, by evaluating the virtual farmland resulted from genetically modified soybean, it shows the trade ban puts China＇s food security at risk. Considering domestic grain product safe- ty, producer surplus and consumer welfare, this paper highlights the importance of implementing an effective virtual farmland strategy, speeding up safety approv- als of genetically modified soybean import, strictly applying a mandatory labeling system and strengthening risk assessment in transgenic programs.
出处
《国际贸易问题》
CSSCI
北大核心
2013年第9期15-27,共13页
Journal of International Trade
基金
国家社会科学基金重大项目"转基因作物产业化可持续发展研究"(编号:11&ZD172)的阶段性研究成果
