Lecture_12 - NR Econ Lecture 12 Today's topic Module IV...

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NR Econ Lecture 12 Today’s topic Module IV: Endangered Species Conservation B. Cost-Effectiveness Analysis Application: Snake River Salmon C. Benefit-Cost Analysis
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Cost-Effectiveness Analysis Definition: an analytical framework for finding the least-cost approach to achieving a particular policy or management goal Example: Recovery of Snake River salmon under the Endangered Species Act
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Salmonids listed under ESA in Pacific Northwest
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Cost-Effective Recovery Strategies for Snake River Chinook Salmon: A Biological-Economic Synthesis Background: -- threatened and endangered salmon in Snake R. -- spring-summer run chinook salmon -- cost-effectiveness analysis: least cost recovery strategies for achieving a given biological goal -- biological goal = population growth rate (lambda) -- the framework trades-off biological outcomes versus economic cost
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Integrating models Salmon passage model (down Snake and Columbia rivers) (biology) Population growth rate model (biology) Cost-effectiveness analysis (economics)
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● Background (cont.): -- potential recovery measures: - Caspian tern removal - predator removal near dams - eliminate human harvest - change/remove barge transportation - flow augmentation in river - reservoir drawdown at 4 lower Snake dams - breach the 4 dams -- “Recovery strategies” = packages of different measures >> How do we proceed?
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Biological Uncertainty How effective is transportation of juvenile smolts in barges around the dams? Sensitivity of results to “D value” Completely effective: D = 1.0 Relatively ineffective: D = 0.4 Current best estimate: 0.553 Relatively high D: rely on transportation Relative low D: stop transportation, and dam breaching also is relatively useful
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λ ∆λ %∆λ ∆λ/ $ λ ∆λ %∆λ ∆λ/ $
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  • Winter '08
  • MOORE
  • Cost-effectiveness analysis, Cost-utility analysis, Snake River, Lower Snake River dams Caspian tern removal Mainstem

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