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[学术文献] Linking global crop and livestock consumption to local production hotspots 进入全文

Global Food Security

International trade plays a critical role in global food security, with global consumption having highly localized environmental impacts. It has been difficult to gain insights into these effects due to the diversity of food production, and complexity of supply chains in international trade. We present a Spatially-explicit Multi-Regional Input-Output (SMRIO) model which couples primary crops and livestock at a high spatial resolution with a global Multi-Regional Input-Output (MRIO) model. We then identify hotspots (the most significant production regions) for primary crops and livestock driven by international consumption. We present the method and data behind this approach, and provide illustrative case studies for Indonesian palm oil and Brazilian soy and beef production. Regionally, China is the largest primary crop consumer, while the EU28 is the largest livestock consumer. Primary crops and livestock hotspots are highly unequal, and the embodied primary crops and livestock for high-income countries are distributed over larger areas when compared to lower-income countries since high-income countries have more numerous trade links. Identified hotspots could allow for increased cooperation between consumers (high-income countries) and producers (lower-income countries) to improve sustainability programs for global food security.

[前沿资讯] 哈萨克斯坦海关将为中国农产品进口开通“绿色通道” 进入全文

中国一带一路网

哈萨克斯坦贸易和一体化部副部长托列巴耶夫当天出席新闻发布会时表示,哈萨克斯坦政府计划在哈中边境口岸为中国农产品进口开通“绿色通道”。托列巴耶夫表示,按照国际通行做法,易腐烂商品进口应设立单独的“绿色”通道,以确保进口商品质量。水果蔬菜等易腐烂商品如果按照常规渠道通关,运入哈境时质量将大大降低。卖方往往会想法设法通过提高价格来弥补部分商品腐烂变质的损失,从而影响哈国内市场价格。为平抑物价和确保商品质量,哈萨克斯坦将为易腐烂商品进口开通专门的“绿色通道”。

[学术文献] 丝绸之路经济带沿线国家农产品贸易网络结构特征研究 进入全文

经济地理

在分析丝绸之路经济带沿线国家农产品贸易格局演变基础上,运用社会网络分析方法探究丝绸之路经济带沿线国家农产品贸易网络结构特征。结果表明:①2010年以来,丝绸之路经济带沿线国家农产品贸易整体呈现增长态势,德法农产品贸易额始终处于第一位,中国与丝绸之路经济带沿线国家农产品贸易空间分异明显,印度是中国最大农产品贸易伙伴。②丝绸之路经济带沿线国家农产品贸易网络密度整体较高,农产品贸易关系密切,农产品贸易网络密度呈现先降后升的波动特征。③丝绸之路经济带沿线国家农产品贸易网络三个中心度指标均存在明显的空间分异,重要节点国家稳中有变,核心国家和中介能力强的国家存在差异。④国家个数最多的凝聚子群包含的国家相对稳定,国家个数较少的五个凝聚子群的组团情况随着时间的推移变化很大,丝绸之路经济带农产品贸易网络呈现明显的“核心+半边缘+边缘”空间圈层结构特征。 

[学术文献] One more tool for the food aid toolbox? Experimental evidence on food aid packaging 进入全文

Food Policy

International food assistance reaches more than 90 million people per year, much of it through in-kind programs that distribute food. Several key aspects of in-kind programs—what food is shipped, when and from where it is sourced—have been changed to improve program effectiveness and efficiency, becoming helpful tools in the modernized in-kind food assistance toolbox. Packaging—in what food is shipped—remains an unstudied and underused tool despite more than 50 million bags per year passing through in-kind supply chains, affecting program effectiveness and efficiency. We conduct an experiment with 46 shipments using different packaging materials and sizes to measure the effect of packaging on shipment quality, cost, and timeliness. Analyzing the data with randomization tests, we find that, relative to the current materials, new materials maintain shipment quality and cost while improving timeliness and in some cases may reduce cost. One promising material that balances cost and effectiveness is a bag with a biopesticide applied, designed to prevent insects from reproducing. We also find that, relative to the current size, larger bags may improve costs at least in the domestic portion of the supply chain. Donors and their partners should consider packaging as one more tool in the modernized food assistance toolbox. As the toolbox continues to fill, the coming opportunity and challenge to identify situations where the various tools work in complementary ways.

[学术文献] 中国农产品出口丝绸之路经济带沿线国家的影响因素及贸易效率——基于随机前沿引力模型的分析 进入全文

国际贸易问题

本文基于时变随机前沿引力模型和贸易非效率模型实证分析2002—2016年中国对丝绸之路经济带沿线国家农产品出口的影响因素及贸易效率,结果表明:中国与贸易伙伴的GDP、地理位置相邻等变量显著推动了中国农产品对其出口规模;人口数量、内陆国等变量显著阻碍了中国农产品的出口;贸易非效率项的存在制约了中国对丝绸之路经济带沿线国家农产品的出口额,其中贸易双边较高的经济自由度可显著降低贸易非效率项,制度距离、农产品贸易成本对贸易效率水平的提高有显著的阻碍作用;从变动趋势来看,中国对丝绸之路经济带沿线国家农产品的出口效率波动上升。因此为提高中国对丝绸之路经济带沿线国家的农产品出口规模及贸易效率,应扩大农产品供给、加强双边交流合作、增强政治互信、提高农产品贸易便利化水平。 

[学术文献] “21世纪海上丝绸之路”沿线国家农产品贸易格局分析 进入全文

统计与决策

文章运用GL指数和HIIT&VIIT指数,基于产业内贸易视角先后从整体和区域层面对1992—2015年中国与"21世纪海上丝绸之路"沿线国家农产品贸易格局进行了分析,并就影响因素展开了进一步研究。结果表明:无论整体或分区来看,中国与"21世纪海上丝绸之路"沿线国家的农产品产业内贸易整体水平较低,水平型产业内贸易是当前农产品产业内贸易增量主要来源。经济规模、人均收入差异、境外直接投资、贸易开放程度以及地理距离等对其产业内贸易水平以及水平型与垂直型产业内贸易水平皆有不同程度的影响。

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