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| Lewandrowski, Jan; Kim, C.S.. |
| An important policy decision in managing invasive species is how to allocate resources between activities aimed at preventing the arrival of new pests - including additional arrivals of existing pests - and activities aimed at reducing the damages done by species that are already here. We develop a dynamic model for managing a generic invasive pest with an uncertain arrival date. The optimal conditions reveal that it is generally more efficient to spend a larger share of outlays for exclusion activities before a species arrives than after it is known to be here. They also show that outlays should be allocated such that the marginal costs of control measures equal the benefits from the marginal reduction of the species' population growth rate, and the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/21948 |
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| Kim, C.S.; Lubowski, Ruben N.; Lewandrowski, Jan; Eiswerth, Mark E.. |
| We present a conceptual, but empirically applicable, model for determining the optimal allocation of resources between exclusion and control activities for managing an invasive species with an uncertain discovery time. This model is used to investigate how to allocate limited resources between activities before and after the first discovery of an invasive species and the effects of the characteristics of an invasive species on limited resource allocation. The optimality conditions show that it is economically efficient to spend a larger share of outlays for exclusion activities before, rather than after, a species is first discovered, up to a threshold point. We also find that, after discovery, more exclusionary measures and fewer control measures are... |
| Tipo: Journal Article |
Palavras-chave: Invasive species; Exclusion; Control; Eradication; Public expenditures; Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/10176 |
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| Lewandrowski, Jan; Peters, Mark; Jones, Carol Adaire; House, Robert M.; Sperow, Mark; Eve, Marlen; Paustian, Keith H.. |
| Atmospheric concentrations of greenhouse gases can be reduced by withdrawing carbon from the atmosphere and sequestering it in soils and biomass. This report analyzes the performance of alternative incentive designs and payment levels if farmers were paid to adopt land uses and management practices that raise soil carbon levels. At payment levels below $10 per metric ton for permanently sequestered carbon, analysis suggests landowners would find it more cost effective to adopt changes in rotations and tillage practices. At higher payment levels, afforestation dominates sequestration activities, mostly through conversion of pastureland. Across payment levels, the economic potential to sequester carbon is much lower than the technical potential reported in... |
| Tipo: Report |
Palavras-chave: Carbon sequestration; Greenhouse gas mitigation; Afforestation; Conservation tillage; No-till; Incentive design; Leakage; Carbon stock; Permanence; Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/33569 |
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