Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach
While global food trade has allowed countries to buffer against domestic food production shortfalls and gain access to larger markets, engaging in trade has also opened economies up to shocks and increased extraction of food resources. With this research, we analyze how the global grain network infl...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/141114 |
| _version_ | 1855519319302078464 |
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| author | Raj, Subhashni Brinkley, Catherine Ulimwengu, John M. |
| author_browse | Brinkley, Catherine Raj, Subhashni Ulimwengu, John M. |
| author_facet | Raj, Subhashni Brinkley, Catherine Ulimwengu, John M. |
| author_sort | Raj, Subhashni |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | While global food trade has allowed countries to buffer against domestic food production shortfalls and gain access to larger markets, engaging in trade has also opened economies up to shocks and increased extraction of food resources. With this research, we analyze how the global grain network influences country-level nourishment, while controlling for per capita land and food production. First, we model the trade network structure of the global wheat supply chain to measure the centrality or positionality of countries. We use spatial regression analysis to assess the impact of trade networks, volume, purchasing power, production capacity and geography on undernourishment. We find that the six countries most central to the global grain trade by betweenness and eigenvector centralities account for more than half of all wheat exports globally by volume. The centrality of these countries as opposed to volume of wheat produced or traded, determines their influence in the wheat supply chain network. The parametric component of our analysis confirms that trade, and centrality have significant implications for national levels of nourishment. Our findings suggest that for countries with low purchasing power, increasing centrality allows improvements in nourishment levels but for countries with very high purchasing power, increasing centrality can increase hunger outcomes. To counteract perturbations and shortfalls such as those being experienced currently in the globalized food system, local and regional governments may consider refocusing on regional and local based food systems. |
| format | Journal Article |
| id | CGSpace141114 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| record_format | dspace |
| spelling | CGSpace1411142025-10-26T13:02:00Z Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach Raj, Subhashni Brinkley, Catherine Ulimwengu, John M. supply chains data networks hunger land use trade food security wheat While global food trade has allowed countries to buffer against domestic food production shortfalls and gain access to larger markets, engaging in trade has also opened economies up to shocks and increased extraction of food resources. With this research, we analyze how the global grain network influences country-level nourishment, while controlling for per capita land and food production. First, we model the trade network structure of the global wheat supply chain to measure the centrality or positionality of countries. We use spatial regression analysis to assess the impact of trade networks, volume, purchasing power, production capacity and geography on undernourishment. We find that the six countries most central to the global grain trade by betweenness and eigenvector centralities account for more than half of all wheat exports globally by volume. The centrality of these countries as opposed to volume of wheat produced or traded, determines their influence in the wheat supply chain network. The parametric component of our analysis confirms that trade, and centrality have significant implications for national levels of nourishment. Our findings suggest that for countries with low purchasing power, increasing centrality allows improvements in nourishment levels but for countries with very high purchasing power, increasing centrality can increase hunger outcomes. To counteract perturbations and shortfalls such as those being experienced currently in the globalized food system, local and regional governments may consider refocusing on regional and local based food systems. 2022-06-15 2024-04-12T13:37:18Z 2024-04-12T13:37:18Z Journal Article https://hdl.handle.net/10568/141114 en Open Access Raj, Subhashni; Brinkley, Catherine; and Ulimwengu, John M. 2022. Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach. PLoS ONE 17(6): e0269891. https://doi.org/10.1371/journal.pone.0269891 |
| spellingShingle | supply chains data networks hunger land use trade food security wheat Raj, Subhashni Brinkley, Catherine Ulimwengu, John M. Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title | Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title_full | Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title_fullStr | Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title_full_unstemmed | Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title_short | Connected and extracted: Understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| title_sort | connected and extracted understanding how centrality in the global wheat supply chain affects global hunger using a network approach |
| topic | supply chains data networks hunger land use trade food security wheat |
| url | https://hdl.handle.net/10568/141114 |
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