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| Registros recuperados: 164 | |
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| Ferrier, Peyton Michael. |
| Agricultural and wildlife trade is subject to sudden, disruptive import restrictions arising from concerns over sanitary and phytosanitary safety and the conservation of natural resources. These restrictions can create significant international price differences that encourage the smuggling of goods across borders. This article presents an equilibrium model of smuggling where the supply and demand for smuggled goods depend on interregional price disparities in the presence of a trade ban. In this model, smuggling is more prevalent when demand and supply among trade partners is more inelastic or when there are fewer total trade partners at the time a trade ban is enacted. Applications are presented for regionalization, destruction of goods in government... |
| Tipo: Journal Article |
Palavras-chave: Illicit trade; Invasive species; Smuggling; SPS Agreement; CITES; Endangered Species Act; Regionalization; International Relations/Trade. |
| Ano: 2008 |
URL: http://purl.umn.edu/45668 |
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| Cacho, Oscar J.; Hester, Susan M.. |
| Invasive species can cause significant damage to natural environments, agricultural systems, human populations and the economy as a whole. Biological invasions are complex dynamic systems which are inherently uncertain and their control involves allocation of surveillance and treatment resources in space and time. A complicating factor is that there are at least two types of surveillance: active and passive. Active surveillance, undertaken by pest control agencies, has high sensitivity but generally low coverage because of its high cost. Passive surveillance, undertaken by the public, has low sensitivity and may have high coverage depending on human population density. Its effectiveness depends on the extent to which information campaigns succeed in... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Search theory; Invasive species; Dispersal; Passive surveillance.; Environmental Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/100535 |
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| Burnett, Kimberly M.; Kaiser, Brooks A.; Pitafi, Basharat A.K.; Roumasset, James A.. |
| Invasive species change ecosystems and the economic services such ecosystems provide. Optimal policy will minimize the expected damages and costs of prevention and control. We seek to explain policy outcomes as a function of biological and economic factors, using the case of Hawaii to illustrate. First, we consider an existing invader, Miconia calvescens, a plant with the potential to reduce biodiversity, soil cover, and water availability. We then examine an imminent threat, the potential arrival of the Brown treesnake (Boiga irregularis). The arrival of the snake in Guam has led to native bird extirpations, power outages, and health costs. |
| Tipo: Journal Article |
Palavras-chave: Invasive species; Bioeconomics; Optimal control; Miconia calvescens; Boiga; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/10178 |
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| Burnett, Kimberly M.; Kaiser, Brooks A.; Roumasset, James A.. |
| The optimal size and location of an invasive species population depend upon spatially differentiated biological growth, economic costs, and damages. Although largely absent from most economic models, spatial considerations matter because the likelihood and magnitude of the invasion vary spatially and the threatened assets may be unevenly distributed across space. We map the current and future populations of an invasive species, Miconia calvescens, on Oahu, Hawaii, and the potential damages to water quantity, quality, and endangered-species habitat, and weigh these against treatment costs. We find that optimal densities vary from approximately 1% to 18% cover throughout the island. |
| Tipo: Journal Article |
Palavras-chave: Geographical Information Systems; Hawaii; Invasive species; Miconia calvescens; Oahu; Spatial analysis; Watershed; Q23; Q25; Q28; Q51; Q57. |
| Ano: 2007 |
URL: http://purl.umn.edu/37274 |
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| Ameden, Holly A.; Cash, Sean B.; Zilberman, David. |
| This analysis presents a theoretical model of firm response to border enforcement and evaluates both the intended and unintended effects under two enforcement regimes: destruction versus treatment of contaminated shipments. The results indicate that importers may respond to increased inspection by reducing shipments and decreasing due care. In response to increased pest populations, firms may reduce shipments and increase due care, indicating that an enforcement response may not be necessary. The analysis reveals the importance of the nature of the due-care technology, as well as the relationships underlying the probability of detection, in determining the effects of enforcement. |
| Tipo: Journal Article |
Palavras-chave: Border enforcement; Environmental regulation; Invasive species; Trade and environment; F18; L51; Q17; Q56; Q58. |
| Ano: 2007 |
URL: http://purl.umn.edu/37112 |
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| Ranjan, Ram. |
| This article looks at technology adoption in agriculture that is specifically targeted against invasive species. The analysis involves predicting the long-term distribution of technology choices when technology can be adopted and is adopted based on current and expected agricultural profits influenced by pest infestation. The theoretical analysis is based on an extension of two authors’ findings in 1993 and incorporates the possibility that psychological factors, such as complacency, have a significant impact on technology adoption and hence disease establishment. An empirical application is performed for soybean rust. |
| Tipo: Journal Article |
Palavras-chave: Adoption psychology; Invasive species; Popularity weighting; Soybean rust; Technology adoption; Q16. |
| Ano: 2007 |
URL: http://purl.umn.edu/37116 |
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| Lichtenberg, Erik; Lynch, Lori. |
| Pest-free status certification is desirable if the demand-side impacts (increased export revenue) and supply-side impacts (lower pest damage and decreased ongoing control costs) exceed the compliance monitoring and eradication costs. Thus, eradication may be optimal without certification. Certification is more likely for regions facing costly treatment requirements (bans) or possessing geographic traits that lower monitoring costs and infestation probabilities than for those exporting higher-valued products. Certification benefits producers but hurts consumers. Thus, political feasibility may be greater if domestic consumption is a small share of the market and if the additional tax burden of certification programs is light. |
| Tipo: Journal Article |
Palavras-chave: Exotic pests; Invasive species; Pest-free area; Eradication; Sanitary/phytosanitary regulations; International Relations/Trade. |
| Ano: 2006 |
URL: http://purl.umn.edu/10182 |
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| Ranjan, Ram. |
| This Paper designs a political economy model of invasive species management in order to explore the effectiveness of tariffs in mitigating the risk of invasion. The revenue interests of the government together with the interests of the lobby group competing with the imported agricultural commodity, that is believed to be the vector of invasive species, are incorporated in a Nash Bargaining game. The government, however, also considers the impact of tariffs on long run risks of invasion and decides optimal tariffs based upon its welfare in the pre and post-invasion scenarios. Along with the size of the lobby group, which is a function of the slope of the demand and supply curves, the weights assigned to the various components in the government welfare... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Invasive species; Political economy; Tariffs; Bargaining; Interest groups; Political Economy; Resource /Energy Economics and Policy; H23; Q17; Q58. |
| Ano: 2004 |
URL: http://purl.umn.edu/15642 |
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| Alamo, Carmen I.; Franqui, R.A.; Evans, Edward A.. |
| The ornamental commodity in Puerto Rico is valued for its economic contribution in the agricultural sector, its contribution to the esthetics of natural scenarios that impact the tourism sector, and for its environmental role. In the fiscal year 2001, ornamentals generated 4.8% of the total Agricultural Gross Product. In that year the production value at farm level was $34.1 million, the export value $0.5 million, and the import value $11.5 millions. Of the local production value, 1.5% was exported and 34.3% of the ornamental local market value was imported. The active trade traffic in Puerto Rico is a factor that increases the risk of the introduction of invasive species that affect the agricultural sector. It is necessary to estimate the economic impact... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Invasive species; Ornamental; Economic impact analysis; Crop Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/15647 |
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| Buyuktahtakin, Esra; Feng, Zhuo; Olsson, Aaryn; Frisvold, George B.; Szidarovszky, Ferenc. |
| This paper models control of invasive buffelgrass (Pennisetum ciliare), a fire-prone African bunchgrass spreading rapidly across the southern Arizona desert as a spatial dynamic process. Buffelgrass spreads over a gridded landscape. Weed carrying capacity, treatment costs, and damages vary over grid cells. Damage from buffelgrass depends on its spatial distribution in relation to valued resources. We conduct positive analysis of recommended heuristic strategies for buffelgrass control, evaluating their ability to prevent weed establishment and to reduce damage indices over time. The high dimensionality of the problem makes full dynamic optimization intractable. However, two heuristic strategies – potential damage weighting and consecutive year treatment –... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Invasive species; Integer programming; Crop Production/Industries; Environmental Economics and Policy; Q57; Q58. |
| Ano: 2010 |
URL: http://purl.umn.edu/61753 |
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| Registros recuperados: 164 | |
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