Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aabf23 |
Identifying the community structure of the food-trade international multi-network | |
Torreggiani, S.1,2; Mangioni, G.3; Puma, M. J.4,5,6; Fagiolo, G.1 | |
2018-05-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; England; USA |
英文摘要 | Achieving international food security requires improved understanding of how international trade networks connect countries around the world through the import-export flows of food commodities. The properties of international food trade networks are still poorly documented, especially from a multi-network perspective. In particular, nothing is known about the multi-network's community structure. Here we find that the individual crop-specific layers of the multi-network have densely connected trading groups, a consistent characteristic over the period 2001-2011. Further, the multi-network is characterized by low variability over this period but with substantial heterogeneity across layers in each year. In particular, the layers are mostly assortative: more-intensively connected countries tend to import from and export to countries that are themselves more connected. We also fit econometric models to identify social, economic and geographic factors explaining the probability that any two countries are co-present in the same community. Our estimates indicate that the probability of country pairs belonging to the same food trade community depends more on geopolitical and economic factors-such as geographical proximity and trade-agreement co-membership-than on country economic size and/or income. These community-structure findings of the multi-network are especially valuable for efforts to understand past and emerging dynamics in the global food system, especially those that examine potential 'shocks' to global food trade. |
英文关键词 | complex networks community-structure detection multi-layer networks food security international trade |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000431996700001 |
WOS关键词 | FLOWS ; AGRICULTURE ; SECURITY ; DEMAND ; FUTURE ; SYSTEM ; MODEL ; RISK |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30971 |
专题 | 气候变化 |
作者单位 | 1.Scuola Super Sant Anna, Ist Econ, Pisa, Italy; 2.SOAS Univ London, London, England; 3.Univ Catania, Dipartimento Ingn Elettr Elettron & Informat, Catania, Italy; 4.Columbia Univ, Ctr Climate Syst Res, New York, NY 10027 USA; 5.Columbia Univ, Ctr Climate & Life, New York, NY 10027 USA; 6.NASA, Goddard Inst Space Studies, New York, NY 10025 USA |
推荐引用方式 GB/T 7714 | Torreggiani, S.,Mangioni, G.,Puma, M. J.,et al. Identifying the community structure of the food-trade international multi-network[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(5). |
APA | Torreggiani, S.,Mangioni, G.,Puma, M. J.,&Fagiolo, G..(2018).Identifying the community structure of the food-trade international multi-network.ENVIRONMENTAL RESEARCH LETTERS,13(5). |
MLA | Torreggiani, S.,et al."Identifying the community structure of the food-trade international multi-network".ENVIRONMENTAL RESEARCH LETTERS 13.5(2018). |
条目包含的文件 | 条目无相关文件。 |
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