| 来源类型 | FEEM working papers "Note di lavoro" series |
| 规范类型 | 论文 |
| The Economics of a ''Mixed Blessing'' Effect: A Case Study of the Black Sea | |
| Duncan Knowler; Edward B. Barbier | |
| 发表日期 | 2002 |
| 出处 | Climate Change and Sustainable Development |
| 出版年 | 2002 |
| 语种 | 英语 |
| 摘要 | Nutrient enrichment of marine ecosystems is regarded as a pressing global environmental problem. For certain marine species it may be a mixed blessing, resulting in damaging ecosystem events, but contributing to primary productivity. Consequently, the impact of enrichment on fishery profits may be positive or negative. This paper develops a method for analyzing such problems, using the example of the Black Sea anchovy fishery. Employing a bioeconomic model that incorporates nutrients directly into fish population dynamics, the problem is formulated in deterministic and stochastic terms. The deterministic model assumes a given ecological state in which nutrients contribute positively to pelagic fish production. The stochastic model recognizes that the planner may take into account the probability of potentially damaging shifts in ecological states due to nutrient enrichment. In this latter model, nutrient abatement has an indeterminate welfare effect, but under certain conditions a marginal change in nutrients generates positive aggregate benefits. |
| 特色分类 | Q2,Q20,Q22 |
| 关键词 | Nutrients,Black Sea,Mnemiopsis,anchovy,eutrophication,stochastic,economics,valuation,bioeconomic,Turkey |
| URL | https://www.feem.it/en/publications/feem-working-papers-note-di-lavoro-series/the-economics-of-a-mixed-blessing-effect-a-case-study-of-the-black-sea/ |
| 来源智库 | Fondazione Eni Enrico Mattei (Italy) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/116715 |
| 推荐引用方式 GB/T 7714 | Duncan Knowler,Edward B. Barbier. The Economics of a ''Mixed Blessing'' Effect: A Case Study of the Black Sea. 2002. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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