No Mangoes in the Tundra: Spatial Heterogeneity in Agricultural Productivity Analysis*
研究了128个国家1961-2002年的农业生产率，发现农业气候环境驱动了不同技术国家的全要素生产率相似性，解释了技术从温带北方国家向干旱/赤道南方国家转移失败的原因。
Abstract In line with the wider macro productivity literature existing studies of agricultural production largely neglect technology heterogeneity, variable time‐series properties and the potential for heterogeneous but correlated total factor productivity (TFP) across countries. Our empirical approach accommodates these difficulties and seeks to model the nature of the cross‐section dependence in a sample of 128 countries (1961–2002). Our results suggest that agro‐climatic environment drives similarity in TFP evolution across countries with heterogeneous production technology. This provides a possible explanation for the failure of technology transfer from advanced countries of the temperate ‘North’ to arid and/or equatorial developing countries of the ‘South’.