Using a Programming Approach to Measure International Agricultural Efficiency and Productivity
用编程方法计算了70个国家的农业多要素生产率，将其分解为技术效率和技术变化，发现许多发展中国家农业技术效率低但技术变化影响更大，且教育和研究服务能解释生产率增长差异。
Multifactor agricultural productivity for seventy countries is calculated using a programming method. Productivity measures are divided into indices that measure technical efficiency and technical change. Agriculture in many developing countries is technically inefficient but technical change has had a greater impact on agricultural productivity. Multifactor productivity is declining in many developing countries where both agricultural output and the use of some agricultural inputs has rapidly grown. The level of education in a country and research services are factors which can explain differences in agricultural productivity growth between countries.