| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1088/1748-9326/11/3/035008 |
| Vulnerability to shocks in the global seafood trade network. | |
| Gephart JA; Rovenskaya E; Dieckmann U; Pace ML; Brännström Å | |
| 发表日期 | 2016 |
| 出处 | Environmental Research Letters 11: e035008 |
| 出版年 | 2016 |
| 语种 | 英语 |
| 摘要 | Trade can allow countries to overcome local or regional losses (shocks) to their food supply, but reliance on international food trade also exposes countries to risks from external perturbations. Countries that are nutritionally or economically dependent on international trade of a commodity may be adversely affected by such shocks. While exposure to shocks has been studied in financial markets, communication networks, and some infrastructure systems, it has received less attention in food-trade networks. Here, we develop a forward shock-propagation model to quantify how trade flows are redistributed under a range of shock scenarios and assess the food-security outcomes by comparing changes in national fish supplies to indices of each country’s nutritional fish dependency. Shock propagation and distribution among regions are modeled on a network of historical bilateral seafood trade data from UN Comtrade using 205 reporting territories grouped into 18 regions. In our model exposure to shocks increases with total imports and the number of import partners. We find that Central and West Africa are the most vulnerable to shocks, with their vulnerability increasing when a willingness-to-pay proxy is included. These findings suggest that countries can reduce their overall vulnerability to shocks by reducing reliance on imports and diversifying food sources. As international seafood trade grows, identifying these types of potential risks and vulnerabilities is important to build a more resilient food system. |
| 主题 | Advanced Systems Analysis (ASA) ; Evolution and Ecology (EEP) |
| 关键词 | Food security Perturbation Seafood trade Shocks Trade network Vulnerability |
| URL | http://pure.iiasa.ac.at/id/eprint/12165/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130710 |
| 推荐引用方式 GB/T 7714 | Gephart JA,Rovenskaya E,Dieckmann U,et al. Vulnerability to shocks in the global seafood trade network.. 2016. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Vulnerability%20to%2（1757KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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