英文文献：Agricultural Productivity and Anticipated Climate Change in Sub-Saharan Africa: A Spatial Sample Selection Model-撒哈拉以南非洲的农业生产力和预期的气候变化:空间样本选择模型
英文文献作者：Ward, Patrick S.,Florax, Raymond J.G.M.,Flores-Lagunes, Alfonso
英文文献摘要：
A cereal yield response function is estimated conditional upon environmental and topographical features to detect the effects of spatial heterogeneity and spatial dependence in explaining agricultural productivity across Sub-Saharan Africa. Controlling for direct and localized spillover effects, we then estimate the effect that projected changes in temperature and precipitation as a result of global climate change will have on agricultural production. We find that the estimated declines found in the climatological literature may overestimate actual declines, and factors such as spatial heterogeneity (i.e., country fixed effects) are profoundly more important to agricultural production.

根据环境和地形特征估计谷物产量响应函数，以检测空间异质性和空间依赖性对解释撒哈拉以南非洲地区农业生产率的影响。在控制直接和局部溢出效应的情况下，我们然后估算由全球气候变化引起的温度和降水变化对农业生产的影响。我们发现，在气候文献中发现的估计下降可能高估了实际下降，而空间异质性(即国家固定效应)等因素对农业生产更为重要。