Yield and economic performance of the use of GM cotton worldwide over time : A review and meta-analysis

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Abstract or Summary

Purpose: The purpose of this paper is to provide an overview of the current state of knowledge on the economic performance of genetically modified (GM) cotton worldwide based on a wide range of data and source from available literature, and second to assess yield gain and economic performance. Design/methodology/approach: A systematic review was captured to provide the evidence of potential benefits of GM cotton. A country-specific analysis was conducted in order to compare economic indicators and employed meta-analysis to find out the significance of the different of GM cotton over its counterpart. Findings: This paper depicts positive impact of commercialized GM cotton in terms of net revenue, and the benefits, especially in terms of increased yields, are greatest for the mostly farmers in developing countries who have benefited from the spill over of technology targeted at farmers in industrialized countries. Research limitations/implications: Due to the variability of the data which came from different methodologies, it is difficult to determine the differences of the performances each individual study. Practical implications: This, it is believed that results from this study can be useful for operations of all sizes as the authors think about what needs to be focused on for long-term producers survival. Originality/value: The paper clearly indicates that China is the highest cotton yield of GM cotton, the lowest cost of GM seed and the lowest cost of chemical spray compare to any other countries. Therefore, this is the fact that the adoption of GM cotton has been widely spread among the farmers across the regions in China.

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