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Marine Resource Economics >
Volume 21, Number 1, 2006 >
Please use this identifier to cite or link to this item:
http://purl.umn.edu/8584
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| Title: | Benefits of Spatial Regulation in a Multispecies System |
| Authors: | Herrera, Guillermo E. |
| Keywords: | Bycatch
multispecies system
second-best regulation
spatial
Q20
Q22
Q28 |
| Issue Date: | 2006 |
| Abstract: | Spatial heterogeneity in multispecies systems affects both ecological interactions and the composition of harvest. A bioeconomic model is used to analyze the nonselective harvest of two stocks with generalized ecological interaction and different persistent distributions across two spatial strata. Harvester response to aggregate effort controls is shown to partially dissipate rents relative to the case where the spatial distribution of effort can be specified. Numerical solutions for time paths of spatial (first-best) and aggregate (secondbest) input constraints indicate factors affecting their relative efficiency. In the scenarios studied, benefits of spatial specificity range from 0 to 15% of total net present value (NPV), depending upon the spatial correlation of stocks, their relative growth rates and prices, and the cost gradient across space. The benefits of spatial regulation are also heightened by the presence of ecological interaction, especially predator-prey dynamics. |
| URI: | http://purl.umn.edu/8584 |
| Institution/Association: | Marine Resource Economics>Volume 21, Number 1, 2006 |
| Total Pages: | 17 |
| Language: | English |
| From Page: | 63 |
| To Page: | 79 |
| Collections: | Volume 21, Number 1, 2006
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| 21010063.pdf | 214Kb | PDF | View/Open |
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