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Registros recuperados: 64
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Eficiência relativa de fungicidas para o controle da murcha da Teia micélica do feijoeiro comum na região Transamazônica. Infoteca-e
PRABHU, A. S.; SILVA, J. F. de A. F. da; FIGUEIREDO, F. J. C.; POLARO, R. H..
Tipo: Folhetos Palavras-chave: Controle; Avaliação; Transamazônica; Pará; Brasil; Bean; Control; Disease; Valuation; Feijão; Doença; Fungicida; Fungo; Murcha da Teia Micélica; Rhizoctonia Microsclerotia; Amazonia; Fungi.
Ano: 1975 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376229
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Competição regional de clones de seringueira na região de Altamira, Pará. Infoteca-e
KALIL FILHO, A. N.; OLIVEIRA, R. P. de.
bitstream/item/57865/1/Altamira-CirTec3.pdf
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Campo Experimental do Km 23; Altamira; Pará; Brasil; Rubber tree; Valuation; Development.; Hevea Brasiliensis; Melhoramento Genético Vegetal; Seringueira.; Amazonia; Breeding..
Ano: 1983 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/383442
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Practical application of the Ecosystem Service Approach (ESA): lessons learned and recommendations for the future ArchiMer
Beaumont, Nicola J; Mongruel, Remi; Hooper, Tara.
An Ecosystem Service Approach (ESA) is increasingly advocated for use in both environmental management and academic applications. However, despite extensive conceptual development, there are still very few examples of the effective use of the ESA for operational management. This contribution reports on the field application of the ESA at six marine and coastal case study sites. Each case study demonstrates a variation on an interdisciplinary approach to translate complex natural science data into ecosystem service terminology, and then explores the usefulness of this information in a management context. From these experiences 6 key recommendations are made to aid the future application of the ESA: (1) Invest resources in collective planning of ESA; (2)...
Tipo: Text Palavras-chave: Ecosystem services; Management; Coastal; Valuation; Uncertainty; Recommendation.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00420/53130/54088.pdf
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The Benefits of Air Pollutant Emissions Reductions in Maryland: Results from the Maryland Externalities Screening and Valuation Model AgEcon
Austin, David H.; Krupnick, Alan J.; Burtraw, Dallas; Stoessell, Terrell.
This paper reports the results of policy simulations of environmental and human health externalities arising from the production of electricity. The primary purpose of this paper is to illustrate the Maryland Externalities Screening and Valuation Model, developed for the State of Maryland's Department of Natural Resources. A secondary purpose is to estimate likely Maryland benefits from Title IV emissions reductions at electric power generation facilities. Sources and scope of benefits, and the potential of policy to achieve specific environmental and human health goals, are suggested by the results. We find that expected health benefits from reductions in power plant emissions dominate the estimated benefits of improved recreational visibility and...
Tipo: Working or Discussion Paper Palavras-chave: Integrated assessment; Health and environmental benefits; Valuation; Uncertainty; Environmental Economics and Policy; I81; Q24; Q25; Q26; Q49.
Ano: 1998 URL: http://purl.umn.edu/10825
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Valoracion de bienes ambientales complejos: una alternativa multicriterio AgEcon
Gomez-Limon, Jose Antonio; Barreiro-Hurlé, Jesús.
RESUMEN La valoración económica de bienes ambientales complejos presenta una serie de aspectos problemáticos. Este trabajo se centra en dos de ellos: la linealidad de los atributos en función de valor de estos bienes y la heterogeneidad en las funciones de utilidad de los individuos. Para ello se propone una metodología basada en la Teoría de la Utilidad Multiatributo que permite contrastar la importancia dada a estos aspectos. Dicha metodología se aplica a un espacio natural protegido en la provincia de Granada. De los resultados se puede concluir que la no-linealidad de los atributos y la heterogeneidad de las funciones de utilidad individuales son aspectos relevantes en la valoración de bienes ambientales. ABSTRACT Economic valuation of comlex...
Tipo: Journal Article Palavras-chave: Complex environmental goods; Heterogeneity; Attribute non-lineartiy; Multiattribute utility; Valuation; Bienes ambientales complejos; Heterogeneidad; Linealidad de atributos; Utilidad multiatributo; Valoracion; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q15; Q18; Q25.
Ano: 2007 URL: http://purl.umn.edu/7055
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Extension multi-indice del metodo beta en valoracion agraria AgEcon
Perez, Jose Garcia; Cruz, Salvador; Rosado, Yolanda.
Resumen: El objetivo de este artículo es el estudio y generalización del método de las dos funciones de distribución, utilizado en la teoría de valoración y, más concretamente, en las valoraciones agrarias. El fundamento básico de este método, propuesto por Ballestero (1973), está en la utilización de un índice representativo del activo que pretendemos valorar y en la aceptación de una serie de hipótesis sobre la distribución de la variable índice y de la variable valor del activo. Hasta este momento y en todos los trabajos publicados sobre este método, se ha mantenido la limitación de utilizar un solo índice (aunque éste sea una síntesis de varios a los que pretende representar). En este trabajo se presenta un método que generaliza el anterior y que...
Tipo: Journal Article Palavras-chave: Valuation; Multi-index; Weighting; Beta; Agribusiness; Q10.
Ano: 2002 URL: http://purl.umn.edu/28759
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Generating Revenues from WTP for Ecosystem Restoration: An Auction Experiment on Public Goods AgEcon
Smith, Elizabeth C.; Swallow, Stephen K..
Research on public good auctions is intended to initiate development on new approaches to finance public goods, beyond government and philanthropic efforts. The researchers evaluate the potential to identify economic value for a subset of ecosystem services and markets that have the potential to provide for them. Empirical analysis focuses on public valuation for three specific types of ecosystem activities (bird habitat, sea grass restoration and shellfish restoration) in coastal Virginia. Data was collected using a field experiment employing an experimental auction approach with mechanisms to reduce free riding often seen in the experimental economics literature. These incentive mechanisms are applied to individual restoration activities and willingness...
Tipo: Conference Paper or Presentation Palavras-chave: Experimental economics; Valuation; Public goods; Ecosystem services; Environmental Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/61654
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FLOODING RISK AND HOUSING VALUES: AN ECONOMIC ASSESSMENT OF ENVIRONMENTAL HAZARD AgEcon
Daniel, Vanessa; Florax, Raymond J.G.M.; Rietveld, Piet.
Climate change, the ‘boom and bust’ cycles of rivers, and altered water resource management practice have caused significant changes in the spatial distribution of the risk of flooding. Hedonic pricing studies, predominantly for the US, have assessed the spatial incidence of risk and the associated implicit price of flooding risk. Using these implicit price estimates and their associated standard errors, we perform a meta-analysis and find that houses located in the 100-year floodplain have a –0.3 to –0.8% lower price. The actual occurrence of a flooding event or increased stringency in disclosure rules causes ex ante prices to differ from ex post prices, but these effects are small. The marginal willingness to pay for reduced risk exposure has increased...
Tipo: Working or Discussion Paper Palavras-chave: Valuation; Environmental risk; Meta-analysis; Hedonic pricing; Environmental Economics and Policy; Land Economics/Use; D81; Q51; Q54.
Ano: 2007 URL: http://purl.umn.edu/7333
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A CONJOINT ANALYSIS OF WATERFOWL HUNTING IN LOUISIANA AgEcon
Gan, Christopher E.C.; Luzar, E. Jane.
Conjoint analysis, widely used in marketing research, offers an alternative resource valuation approach suited to outdoor recreation activities characterized as multiattribute. Design, implementation, and interpretation of conjoint analysis are reviewed in the context of recreation applications. Conjoint analysis is used in an analysis of waterfowl hunting in Louisiana. Using primary data collected from a survey of waterfowl hunters, ordered logit is used to estimate willingness-to-pay for recreation experience attributes.
Tipo: Journal Article Palavras-chave: Conjoint analysis; Recreation demand; Waterfowl hunting; Valuation; Resource /Energy Economics and Policy.
Ano: 1993 URL: http://purl.umn.edu/15044
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THE INFLUENCE OF SPATIAL LAND USE PATTERNS ON RURAL AMENITY VALUES AND WILLINGNESS TO PAY FOR GROWTH MANAGEMENT: EVIDENCE FROM A CONTINGENT CHOICE SURVEY AgEcon
Johnston, Robert J.; Bauer, Dana Marie; Swallow, Stephen K..
This paper reports on a contingent choice study in which residents of a rural Rhode Island community were asked to express their preferences for packages of growth management outcomes, where surveys presented both spatial and non-spatial attributes of growth management outcomes. Survey results provide insight on the extent to which estimated willingness to pay (WTP) for marginal changes in specific landscape features or land uses may be influenced by spatial considerations. Results also characterize the potential impact of spatial context on public preferences and WTP for coordinated packages of growth management outcomes. Keywords: Land Use, Spatial, Contingent Choice, Growth Management, Economics, Valuation
Tipo: Conference Paper or Presentation Palavras-chave: Land Use; Spatial; Contingent Choice; Growth Management; Economics; Valuation; Land Economics/Use.
Ano: 2000 URL: http://purl.umn.edu/21766
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Integrated Hydro-Economic Modelling: Challenges and Experiences in an Australian Catchment AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
Integrated catchment policies are widely used to manage natural resources in Australian catchments. Integration of environmental processes with socio-economic systems is often difficult due to the limitations of decision support tools. To support assessments of the environmental and economic trade-offs of changes in catchment management, fully integrated models are needed. This research demonstrates a Bayesian Network (BN) approach to integrating environmental modelling with economic valuation. The model incorporates hydrological, ecological and economic models for the George catchment in Tasmania. Choice experiments were used to elicit information about the non-market costs and benefits of environmental changes. This allows the efficiency of alternative...
Tipo: Report Palavras-chave: Hydro-economic modelling; Integrated catchment modelling; Ecological modelling; Valuation; Bayesian networks; Water quality; Community/Rural/Urban Development; Environmental Economics and Policy; Land Economics/Use.
Ano: 2009 URL: http://purl.umn.edu/94815
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Economic Valuation of Forest Ecosystem Services: Methodology and Monetary Estimates AgEcon
Chiabai, Aline; Travisi, Chiara M.; Ding, Helen; Markandya, Anil; Nunes, Paulo A.L.D..
By using ad hoc value transfer protocols, this paper offers a methodological contribution and provides accurate per hectare estimates of the economic value of some selected ecosystem services for all forest biomes in the world, identified following the Millennium Ecosystem Assessment taxonomy MEA. The research also estimates potential total economic losses from policy inaction in year 2050. Final results show that total losses are significant. The total figure is €78 billion, the greatest losses coming from North America and Mexico, followed by Africa, Russia and some Asiatic countries. Most of this loss is attributable to provisioning services and carbon sequestration, while only a minor part is due to loss of cultural services. In terms of biomes the...
Tipo: Working or Discussion Paper Palavras-chave: Forest; Ecosystem Services; Biodiversity; Valuation; Value Transfer; Environmental Economics and Policy; O13; Q23; Q26; Q51; Q54; Q57.
Ano: 2009 URL: http://purl.umn.edu/50361
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Global Compensation for Oil Pollution Damages: The Innovations of The American Oil Pollution Act AgEcon
Boyd, James.
Via technology and operations standards, U.S. regulation exerts an important influence over worldwide marine safety standards. But in addition, several other aspects of U.S. law deserve wider international consideration and adoption. First, the Oil Pollution Act's natural resource damage provisions are an innovative and effective way to deter marine pollution and provide for the restoration of injured ecological resources. Second, the relatively strict financial requirements imposed on marine transporters help ensure that polluters, rather than the public, pay if damage is caused. Liability and financial responsibility rules are not unknown in other countries. But the United States has a longer history with implementation and applies its rules more...
Tipo: Working or Discussion Paper Palavras-chave: Oil Pollution Act; Natural resource damages; Environmental liability; Financial assurance; Financial responsibility; Valuation; Farm Management; K13; K32; Q38.
Ano: 2004 URL: http://purl.umn.edu/10691
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Economic Consequences of Pollinator Declines: A Synthesis AgEcon
Bauer, Dana Marie; Sue Wing, Ian.
This paper surveys the literature on pollinator declines and related concerns regarding global food security. Methods for valuing the economic risks associated with pollinator declines are also reviewed. A computable general equilibrium (CGE) approach is introduced to assess the effects of a global catastrophic loss of pollinators. There appears to be evidence supporting a trend towards future pollinator shortages in the United States and other regions of the world. Results from the CGE model show economic risks to both direct crop sectors and indirect non-crop sectors in the economy, with some amount of regional heterogeneity.
Tipo: Journal Article Palavras-chave: Ecosystem services; Pollinators; Food security; Valuation; Computable general equilibrium modeling; Environmental Economics and Policy; Food Security and Poverty; International Relations/Trade; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/95903
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Designing choice experiments to Test for Anchoring and Framing Effects AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
Choice experiments (CE) are increasingly used as a stated preference technique to value changes in non-market goods. Respondents to a CE survey are asked to make repeated choices between alternatives. Each alternative is described by a number of attributes – the attributes levels vary across alternatives and choice sets. A monetary attribute is typically included so that marginal values for changes in the non-market attributes presented can be estimated. The monetary attribute has central importance. However, there has been limited research on the impacts on respondents’ choices of changing the (range in) levels of the monetary attribute presented in CE surveys. This is known as the ‘anchoring’ effect. The ‘framing’ of non-market attributes may also...
Tipo: Report Palavras-chave: Choice experiments; Valuation; Anchoring effect; Starting point bias; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/94810
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What's the Use? Welfare Estimates from Revealed Preference Models when Weak Complementarity does not Hold AgEcon
Herriges, Joseph A.; Kling, Catherine L.; Phaneuf, Daniel J..
The focal point of the revealed preference (RP) valuation literature, including recreation demand and random utility maximization (RUM) models, has been on eliciting the "use" value associated with environmental amenities; i.e., that portion of value associated with direct use of a resource. Maler's (1974) concept of weak complementarity is typically invoked to justify this focus. Indeed, weak complementarity explicitly or implicitly underlies most of the RP literature. In this paper, we consider the measurement of welfare in RP models when weak complementarity does not hold. In particular, the Kuhn-Tucker (KT) framework (e.g., Phaneuf et al. 2000) does not impose weak complementarity a priori, raising the possibility of rejecting weakly complementary in...
Tipo: Working or Discussion Paper Palavras-chave: Revealed preference; Valuation; Weak complementarity; Use value; Research Methods/ Statistical Methods.
Ano: 2000 URL: http://purl.umn.edu/18341
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Knowledge and the Valuation of Public Goods and Experiential Commodities: Information Provision and Acquisition AgEcon
Tisdell, Clement A..
Provides empirical evidence of significant lack of relevant knowledge of some public goods and experiential commodities. It also analyses whether information provision about the attributes or characteristics of commodities is likely to result in individuals’ finding their ‘true’ preferences for these, and identifies the type and nature of information that should be conveyed to enable commodities to be appropriately valued. It also recognizes that sometimes commodities may contain attributes that individuals are unable to evaluate. Furthermore, individuals acquire and filter information about commodities. Factors influencing these activities require analysis. A cost-benefit analysis of information acquisition suggests that individuals are less likely to...
Tipo: Working or Discussion Paper Palavras-chave: Behavioral economics; Contingent evaluation; Experiential commodities; Information; Knowledge; Public choice; Public goods; Nature conservation; Valuation; Public Economics.
Ano: 2006 URL: http://purl.umn.edu/90545
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Economic analysis of spatial preferences heterogeneity of water quality AgEcon
Martin-Ortega, Julia; Brouwer, Roy; Berbel, Julio.
The main objective of this study is to account for spatial preference variability in the economic valuation of water quality improvements in the river basin context. This is expected to be particularly relevant for the implementation of the European WFD, as it will involve spatially differentiated perceptions of the benefits of water quality changes. A choice experiment is developed based on maps to elicit welfare measures for water quality improvements across sub-basins in the Guadalquivir River Basin in Spain. Variation is introduced simultaneously in the spatial distribution of goods and services and their beneficiaries, for the accounting of spatial preference heterogeneity (i.e. people’s different valuation of changes in environmental good provision...
Tipo: Conference Paper or Presentation Palavras-chave: Water economics; Valuation; Choice Experiment; Spatial Heterogeneity; Water Quality; Environmental Economics and Policy; Q51; Q25; H41.
Ano: 2009 URL: http://purl.umn.edu/50626
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Developing a Questionnaire for Valuing Changes in Natural Resource Management in the George Catchment, Tasmania AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
review, expert interviews, biophysical modelling and focus group discussions were used to design a Choice Modelling (CM) questionnaire. This questionnaire was used to value changes in natural resource management in the George catchment, Tasmania. This report describes the questionnaire development, the selection of George catchment attributes and the assessment of attribute levels. The (experimental) design and delivery of the questionnaire are also presented.
Tipo: Report Palavras-chave: Choice experiments; Valuation; Survey development; Tasmania; Catchment management; Environmental Economics and Policy; Land Economics/Use.
Ano: 2008 URL: http://purl.umn.edu/94807
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RESULTS OF THE NORTH DAKOTA LAND VALUATION MODEL FOR THE 2001 AGRICULTURAL REAL ESTATE ASSESSMENT AgEcon
Aakre, Dwight G.; Vreugdenhil, Harvey G..
This report summarizes the results of the North Dakota Land Valuation Model. This model is used annually to estimate average land values by county, based on the value of production produced on that land. The county land values developed from this procedure form the basis for the 2001 valuation of agricultural land for assessment of real estate taxes. The average all land value from this analysis is multiplied by the total acres of agricultural land on the county abstract to determine each county's total agricultural land value. The State Board of Equalization compares this value with the total value assessed to agricultural property in each county. Each county is required by state statute to assess a total value of agricultural property within 5 percent of...
Tipo: Working or Discussion Paper Palavras-chave: Assessment; Capitalization rate; Land; Taxes; Valuation; Land Economics/Use.
Ano: 2001 URL: http://purl.umn.edu/23675
Registros recuperados: 64
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