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| Registros recuperados: 133 | |
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| Huang, Ju-Chin; Smith, V. Kerry. |
| This paper argues that the widespread belief that discrete contingent valuation (CV) questions yield substantially larger estimates of the mean (and the median) willingness to pay (WTP) for nonmarket environmental resources in comparison to estimates from open-ended CV questions is unfounded. A set of Monte Carlo experiments estimate the factors influencing the performance of WTP estimates based on discrete response models. Most of the error in the WTP estimates arises from the specification errors that are common in most of the empirical models used in the literature. These experiments suggest models based on choices where WTP is dominated by non use (or passive use) values are likely to have smaller errors than where large use values influence these... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Discrete response contingent valuation; Monte Carlo; Non-market valuation; Financial Economics; C93; D12; Q2. |
| Ano: 1997 |
URL: http://purl.umn.edu/10546 |
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| Walls, Margaret. |
| Solid waste management services are contracted out to private firms in many U.S. communities. Household waste collection, transport, and disposal are relatively straightforward services to define within the terms of a contract. The addition of recycling, however, significantly complicates matters. How should contracts be structured to provide incentives for recycling? Who should own key facilities, such as recyclable materials processing facilities? Should a separate contract for processing and sale of materials be used, or should these services be provided by government employees or purely private markets? These questions are addressed in this study using the principal-agent framework and the theory of incomplete contracts in economics. I explain stylized... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Incentive contracts; Asset specificity; Principal-agent models; Waste collection; Recycling; Environmental Economics and Policy; L33; L14; Q2. |
| Ano: 2003 |
URL: http://purl.umn.edu/10707 |
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| Carvalho, Francisco Prancacio Araujo de; Gomes, Jaira Maria Alcobaca. |
| The Copernicia prunifera (Miller) H.E. Moore or “carnauba” generates a material from the leaves used in the wax production, raw material of countless industrial products. Brazil is the only producer of carnauba wax and the state of Piauí, an important influential. In this, the natural conditions of the district of Campo Maior favor the incidence of the carnauba and its historical tradition in the wax production, turned it a regional pole. The general goal is to analyze, in the carnauba wax production, the elements and the eco-efficiency indicators - economical efficiency associated with low environmental impact. The specific goals are: to evaluate, qualitatively, the materials and energy consumption, toxic substances emissions, existence of recycling of... |
| Tipo: Journal Article |
Palavras-chave: Carnauba wax. Eco-efficiency. Brazil Northeast. State of Piauí.; Agribusiness; O18; Q01; Q2; M14. |
| Ano: 2008 |
URL: http://purl.umn.edu/61245 |
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| Buhle, Eric; Margolis, Michael; Ruesink, Jennifer L.. |
| Strategies for controlling invasive species can be aimed at any or all of the stages in the life cycle. In this paper we show how to combine biological data on population dynamics with simple economic data on control cost options to determine the least costly set of strategies that will halt an invasion. We then apply our methods to oyster drills (Ocinebrellus inornatus), an economically important aquaculture pest that has been accidentally introduced worldwide. If the costs of intervention were the same across life stages, extermination of adults would be an inefficient way to control species with the population dynamics characteristics of invaders. In the oyster drill case, however, efficient control targets adults because they are much easier to find. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Invasive species; Bioeconomics; Control strategies; Environmental Economics and Policy; Q10; Q2; Q22. |
| Ano: 2004 |
URL: http://purl.umn.edu/10793 |
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| Walls, Margaret. |
| Extended producer responsibility (EPR) embodies the notion that producers should be made physically or financially responsible for the environmental impacts their products have at the end of product life. The EPR concept has taken hold in Europe and is garnering wide interest in the United States, where a variant known as "shared product responsibility" or "product stewardship" is usually the preferred approach. There are several policy instruments that are consistent with EPR-product take-back mandates, advance disposal fees, deposit-refunds, recycled content standards, and more. The EPR concept itself, however, provides little guidance about which of these instruments might be appropriate under particular conditions and for particular products. Moreover,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: EPR; Recycling; Design for environment; Agricultural and Food Policy; Q2; H2. |
| Ano: 2003 |
URL: http://purl.umn.edu/10855 |
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| Palmer, Karen L.; Sigman, Hilary; Walls, Margaret. |
| This paper explores public policies for reduction of municipal solid waste. We parameterize a simple model of waste disposal using supply and demand elasticities from the economics literature and 1990 prices and quantities of recyclable and recycled materials. Using this model, we calculate the waste reduction in response to three public policies: (i) deposit/ refunds, (ii) advance disposal fees, and (iii) recycling subsidies. The results illustrate the effects of the three policies on source reduction and recycling of five recyclable materials that comprise 56 percent of municipal solid waste: aluminum, glass, paper, plastic, and steel. The calculated responses provide information about the cost of reducing municipal solid waste through various policies.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Solid waste; Deposit/refund; Recycling subsidy; Secondary materials; Environmental Economics and Policy; Q2; H2. |
| Ano: 1996 |
URL: http://purl.umn.edu/10898 |
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| Alavalapati, Janaki R.R.; Jose, Shibu; Stainback, G. Andrew; Matta, Jagannadha R.; Carter, Douglas R.. |
| Cogonagrass (Imperata Cylindrica), an invasive weed, is a threat to slash pine forests. Using a dynamic optimization model, we estimated the impact of cogongrass on the profitability of slash pine forestry under four scenarios: no threat of cogongrass infestation; infestation is uncertain, and no control measures are taken; infestation is uncertain, but control measures are undertaken by one landowner but not the neighbors; and infestation is uncertain, and control measures are undertaken by everyone. Results indicate that annual net returns per acre under each scenario, respectively, are $25.30, $16.97, $13.89, and $17.38. Results suggest fostering a cooperative behavior among landowners is desirable. |
| Tipo: Journal Article |
Palavras-chave: Cogongrass; Infestation; Invasive species; Productivity; Profitability; Q0; Q2. |
| Ano: 2008 |
URL: http://purl.umn.edu/37121 |
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| Registros recuperados: 133 | |
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