埃塞俄比亚转基因玉米:一种耐旱抗虫玉米Tela的事前经济评估

C. Yirga, Alejandro Nin Pratt, P. Zambrano, U. Wood-Sichra, Endeshaw Habte, J. Komen, J. Falck-Zepeda, J. Chambers
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引用次数: 5

摘要

在过去的二十年里,埃塞俄比亚经济的平均增长率几乎超过了该地区的任何其他经济体。这一发展的核心是高度优先重视加速农业增长和实现粮食安全和减轻贫困。多年来,玉米已成为小农广泛生产和消费的主要粮食安全作物,面积仅次于苔麸。尽管多年来玉米产量持续增长,但其产量仍低于世界平均水平。在玉米面临的许多非生物和生物限制中,虫害和干旱是两个关键因素。转基因的TELA玉米可以帮助解决这些限制。本文估计了采用这项新技术的经济效益和埃塞俄比亚如果推迟采用该技术将产生的机会成本。分析使用新开发的DREAMpy软件运行经济盈余部分均衡模型,数据来自埃塞俄比亚社会经济调查,2015-2016年第3波,使用这些调查数据进行计量经济学估计,以及其他当地数据和来源。估计表明,如果在2023年种植耐旱和抗虫的TELA玉米,生产者和消费者的净现值将达到8.5亿美元左右。鉴于TELA玉米的目标地区,来自中高海拔玉米区的生产者将是主要受益者。各地的消费者都将从预期的降价中受益。如果这项新技术的采用推迟5年,估计的净现值将下降30%。这些成本强调了建立一个高效、可预测和透明的监管体系的重要性,并确保实现预期的经济效益。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GM Maize in Ethiopia: An Ex Ante Economic Assessment of Tela, a Drought Tolerant and Insect Resistant Maize
Ethiopian economy has grown at an average rate that surpasses that of almost any other economy in the region over the last two decades. At the center of this development is the high priority placed on accelerating agricultural growth and achieving food security and poverty alleviation. Over the years, maize has become a main food security crop, widely produced and consumed by smallholder farmers, second only to teff in terms of area. Despite the sustained growth of maize production over the years, its yields continue to be lower than the world’s average. Of the many abiotic and biotic constraints that maize faces, insect attacks and droughts are two critical ones. The genetically modified TELA maize can help address these constraints. This paper estimates the economic benefits of adopting this new technology and the opportunity cost that Ethiopia will incur if its adoption is delayed. The analysis is conducted using an economic surplus partial equilibrium model run with the newly developed DREAMpy software, data drawn from the Ethiopia Socioeconomic Survey, Wave 3 2015-2016, econometric estimations using these survey data, and other local data and sources. The estimations show that if the drought tolerant and insect resistant TELA maize is planted in 2023 the net present-value of benefits for producers and consumers would be around $850 million. Producers from the mid-altitude maize zone will be the main beneficiaries, given the targeted area of TELA maize. Consumers from all areas will benefit from the projected reduction in price. If the adoption of this new technology is delayed by 5 years, the estimated net present value of benefits will fall by 30 percent. These costs underscore the importance of having a regulatory system that is efficient, predictable, and transparent and ensures that the projected economic benefits are realized.
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