英文文献：Behavior of subsistence producers in response to technological change- The elasticity of cassava production and home consumption in Benin-维生生产者对技术变化的反应行为- -贝宁木薯生产和家庭消费的弹性
英文文献作者：Takeshima, Hiroyuki
英文文献摘要：
The welfare effects of GM (genetic modification)-led productivity growth for cassava producers are partly affected by the characteristics of individual cassava producing households. Those household characteristics include the elasticity of production and home consumption of cassava. Some studies assume the inelastic home consumption when conducting ex-ante welfare effects analysis for subsistence crops. This study modifies the estimation methods used in the past literature to estimate both elasticities using the dataset from Benin. Several assumptions are also tested regarding the heterogeneity of cassava producers. On estimation of elasticities, the paper tests the hypothesis that on-farm sellers are characteristically different from off-farm sellers by employing the double hurdle model. The findings contribute to the literatures analyzing the distributional effects of welfare effects from GM-led productivity growth for cassava, which are gaining importance in the context of the policy impacts on poverty reduction.

转基因(基因改造)带来的福利效应导致木薯生产者生产力增长，这在一定程度上受到木薯生产家庭个体特征的影响。这些家庭特征包括木薯生产和家庭消费的弹性。一些研究在对生存作物进行事前福利效应分析时，假设家庭消费是非弹性的。本研究使用来自贝宁的数据对过去文献中用于估计弹性的估计方法进行了修改。关于木薯生产者的异质性也检验了几个假设。在弹性估计方面，本文采用双障碍模型检验了农场卖方与非农卖方具有特徵性差异的假设。这一发现有助于文献分析的福利效应的分配效应，从生产率增长对木薯，这是越来越重要的政策影响减贫的背景下。