Democratic Republic of Congo is a developing country located in Central Africa with a population of over 75 million. Generally, it relies on import in international market for food as it has constantly been experienci...Democratic Republic of Congo is a developing country located in Central Africa with a population of over 75 million. Generally, it relies on import in international market for food as it has constantly been experiencing domestic crisis which hinders production. Given the importance of shores price policy and income policy, the government pays meticulous attention to these factors to meet the present and future food security. In order to understand the import behavior related to GDP and international trade prices, the study employs Almost Idea Demand System (AIDS) model using FAO data. The result explains that price effect is more useful to the food security of the country than the income effect, thus this study suggest the government should give priority to policy on price.展开更多
为了更合理高效地在灾害发生时对不同受灾点进行应急救援,提出了一种基于组合赋权的优劣解距离法(technique for order preference by similarity to an ideal solution,TOPSIS)模型,对受灾点救援需求紧迫度进行分级研究。首先,分析受...为了更合理高效地在灾害发生时对不同受灾点进行应急救援,提出了一种基于组合赋权的优劣解距离法(technique for order preference by similarity to an ideal solution,TOPSIS)模型,对受灾点救援需求紧迫度进行分级研究。首先,分析受灾点救援需求紧迫度的影响因素,构建受灾点救援需求紧迫度评价指标体系;其次,综合运用客观权重赋值法(criteria importance though intercrieria correlation,CRITIC)和熵权法对各指标进行组合赋权;然后,运用组合赋权-TOPSIS法对受灾点救援需求紧迫度量化分级;最后,以汶川地震为背景进行算例分析,结果表明:组合赋权所得权值相比单一赋权能够得到更加客观合理的结果,有利于灾害发生情况下应急管理部门更加及时、准确、有序地进行应急救援。展开更多
文摘Democratic Republic of Congo is a developing country located in Central Africa with a population of over 75 million. Generally, it relies on import in international market for food as it has constantly been experiencing domestic crisis which hinders production. Given the importance of shores price policy and income policy, the government pays meticulous attention to these factors to meet the present and future food security. In order to understand the import behavior related to GDP and international trade prices, the study employs Almost Idea Demand System (AIDS) model using FAO data. The result explains that price effect is more useful to the food security of the country than the income effect, thus this study suggest the government should give priority to policy on price.
文摘为了更合理高效地在灾害发生时对不同受灾点进行应急救援,提出了一种基于组合赋权的优劣解距离法(technique for order preference by similarity to an ideal solution,TOPSIS)模型,对受灾点救援需求紧迫度进行分级研究。首先,分析受灾点救援需求紧迫度的影响因素,构建受灾点救援需求紧迫度评价指标体系;其次,综合运用客观权重赋值法(criteria importance though intercrieria correlation,CRITIC)和熵权法对各指标进行组合赋权;然后,运用组合赋权-TOPSIS法对受灾点救援需求紧迫度量化分级;最后,以汶川地震为背景进行算例分析,结果表明:组合赋权所得权值相比单一赋权能够得到更加客观合理的结果,有利于灾害发生情况下应急管理部门更加及时、准确、有序地进行应急救援。
