| 来源类型 | Article
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| 规范类型 | 其他
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| DOI | 10.3390/su10051550
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| Modeling Global Trade in Phosphate Rock within a Partial Equilibrium Framework. |
| Khabarov N; Obersteiner M
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| 发表日期 | 2018
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| 出处 | Sustainability 10 (5): p. 1550
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| 出版年 | 2018
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| 语种 | 英语
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| 摘要 | Against the background of combined population and consumption growth, the global sustainable development agenda foresees limits to the expansion of agricultural land. The application of fertilizer is necessary to replenish soil nutrients and keep crop yields high. Phosphate rock (PR) is the main raw material for the production of commercial phosphorus fertilizers. The international PR market is highly concentrated in terms of reserves and supply: a few countries export the major share of all PR traded globally. As many countries are highly dependent on phosphorus import, the modeling of international PR trade and thus exploration of what-if scenarios is of great interest. For modeling purposes, we employ the partial equilibrium framework. The model is driven by a subset of the United Nations (UN) Comtrade database at a yearly time step spanning the period 1997–2016. The only inputs to the model are slope coefficients of demand–supply curves. The transportation costs are internalized by creating a costs ensemble on the basis of historical data. While reasonably sensitive to its inputs, the model fits very well to reported global annual traded quantities and prices and considerably improves per-trade-partner quantity estimates as compared to simple period-averaging approaches. This is the first application of a partial equilibrium approach to global PR market modeling, including validation. |
| 主题 | Ecosystems Services and Management (ESM)
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| 关键词 | phosphate rock
international trade
partial equilibrium
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| URL | http://pure.iiasa.ac.at/id/eprint/15266/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 引用统计 |
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131394
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推荐引用方式
GB/T 7714 |
Khabarov N,Obersteiner M. Modeling Global Trade in Phosphate Rock within a Partial Equilibrium Framework.. 2018.
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文件名：
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sustainability-10-01550.pdf
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格式：
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Adobe PDF
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