Measuring Welfare Benefits from Improvements in Storage Technology with an Application to Tunisian Potatoes
用多市场模型分析作物储存技术改进对效率和公平的影响，发现生产者从降低营销成本的技术中获益更多，而消费者从减少储存损失的技术中获益更多。以突尼斯马铃薯为例，1980年代改进储存害虫防治显著降低了市场价格和数量的季节性波动，储存研究的回报率在44%到74%之间。
Abstract A multimarket model is used to explore equity and efficiency implications of improving crop storage technology. Two types of technical change are explored. Producers capture most of the benefits from new technology that reduces the cost of marketing inputs, whereas consumers gain more from technologies that reduce storage losses. In an application of the model to potatoes in Tunisia, improved pest control during storage is estimated to have significantly reduced seasonal variation in market prices and quantities during the 1980s. The rate of return to research on potato storage is estimated to lie between 44% and 74%.