英文文献：Diffusion of Bt Cotton in India: Impact of Seed Prices and Technological Development-Bt棉花在印度的扩散:种子价格和技术发展的影响
英文文献作者：Arora, Anchal,Bansal, Sangeeta
英文文献摘要：
Recent studies in the literature examining impact of government seed price intervention on adoption of Bt cotton get different results depending on the specifics of the situation analyzed. According to one study, reduction in seed prices enables farmers to buy seeds at lower prices and this can result in surge of area sown under Bt cotton. The other view holds that seed price interventions have little impact on the adoption rates rather these interventions may adversely affect firms’ incentives to innovate. Which of the two views characterize adoption of Bt cotton in India? Using three variations of dynamic logistic model, this paper analyzes the impact of certain economic factors like seed prices, technological development, and cotton prices on the diffusion of Bt cotton in India. It uses panel data set covering 9 major cotton growing states over the years 2002 to 2008 and finds that although seed prices were significant in impacting the diffusion rates, its impact was limited. The study also sheds light on the significance of technological development in impacting diffusion rates.

在最近的文献研究中，政府种子价格干预对Bt棉花的采用的影响根据具体情况分析得出不同的结果。根据一项研究，种子价格的降低使农民能够以更低的价格购买种子，这可能导致Bt棉花播种面积的激增。另一种观点认为种子价格干预对采用率的影响很小，而这些干预可能会对企业的创新动机产生不利影响。这两种观点哪一种是印度采用Bt棉花的特点?本文利用动态logistic模型的三种变量，分析了种子价格、技术发展、棉花价格等经济因素对印度Bt棉扩散的影响。它使用覆盖了2002年至2008年9个主要棉花种植州的面板数据集，发现尽管种子价格对扩散率有显著影响，但其影响是有限的。该研究还揭示了技术发展对扩散速率影响的重要性。