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Registros recuperados: 64
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Is Choice Modelling Really Necessary? Public versus expert values for marine reserves in Western Australia AgEcon
Rogers, Abbie A..
One of the motivations for choice modelling is to provide values that can be used to inform decisionmakers about the non-market costs and benefits of proposed projects or policies. However, the question must be asked as to whether decision-makers consider choice modelling to be a policy relevant tool. There may be more cost-effective and convenient means of providing comparable policy guidance than commissioning a choice modelling study. For example, advice on decision options may be sought from experts, such as scientists. However, expert advice may not accurately reflect the value judgements of the public. The aim of this study is to investigate whether public and expert preferences diverge, using the choice modelling technique. Two case studies are...
Tipo: Conference Paper or Presentation Palavras-chave: Choice modelling; Valuation; Experts; Public; Marine parks; Research Methods/ Statistical Methods.
Ano: 2011 URL: http://purl.umn.edu/100704
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Stated Choice Experiments with Complex Ecosystem Changes: The Effect of Information Formats on Estimated Variances and Choice Parameters AgEcon
Hoehn, John P.; Lupi, Frank; Kaplowitz, Michael D..
Stated choice experiments about ecosystem changes involve complex information. This study examines whether the format in which ecosystem information is presented to respondents affects stated choice outcomes. Our analysis develops a utility-maximizing model to describe respondent behavior. The model shows how alternative questionnaire formats alter respondents’ use of filtering heuristics and result in differences in preference estimates. Empirical results from a large-scale stated choice experiment confirm that different format presentations of the same information lead to different preference parameter estimates and error variances. A tabular format results in choice parameter estimates with statistically smaller variances than parameters estimated from...
Tipo: Journal Article Palavras-chave: Choice experiments; Heuristics; Stated preference; Valuation; Web surveys; Wetland mitigation; Crop Production/Industries; Demand and Price Analysis.
Ano: 2010 URL: http://purl.umn.edu/99121
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A Ricardian analysis of the impact of climate change on African cropland AgEcon
Kurukulasuriya, Pradeep; Mendelsohn, Robert.
This study examines the impact of climate change on cropland in Africa, using a Ricardian cross-sectional approach. Relying on farm data from an 11-country survey of over 9500 farmers, annual net revenue is regressed on climate and other variables. The study confirms that current climate affects the net revenues of farms across Africa. Applying these results to possible future climates reveals that dryland farms are especially climate sensitive. Even as early as 2020, climate change could have strong negative impacts on currently dry and hot locations. By 2100, dryland crop net revenues could rise by 51% if future warming is mild and wet but fall by 43% if future climates are hot and dry. The crop net revenues of currently irrigated farms are likely to be...
Tipo: Journal Article Palavras-chave: Climate change; Agriculture; Valuation; Africa; Crop Production/Industries; Land Economics/Use; Resource /Energy Economics and Policy; Q12; Q25.
Ano: 2008 URL: http://purl.umn.edu/56965
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Chapter 01: VALUING FOOD SAFETY AND NUTRITION: THE RESEARCH NEEDS AgEcon
van Ravenswaay, Eileen O..
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Food safety; Nutrition; Valuation; Health production; Health maintenance; Market failure; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25976
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Implementing the Efficient Auction: Initial Results from the Lab AgEcon
Margolis, Michael; Shogren, Jason F..
The efficient auction is designed to induce truthful bidding for bidders with affiliated values. Herein we implement the auction in the lab, and observe that inexperienced people can bid systematically in this more complex environment, albeit yielding a flatter bid function than the truthful one.
Tipo: Working or Discussion Paper Palavras-chave: Auction; Affiliation; Experiments; Valuation; Financial Economics; C9; D44.
Ano: 2003 URL: http://purl.umn.edu/10733
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Biodiversity Conservation through Public Management in Cultural Landscapes: Integrating Economic and Ecological Evaluation of Species by Shadow Prices AgEcon
Nuppenau, Ernst-August.
The paper deals with the problem of finding relative values for species in the case of biodiversity conservation in a cultural landscape. We use the concept of shadow prices to derive flexible functional forms that allow us to conduct an interactive and internal valuation process. The paper is organized such as that (1) the theory of shadow price derivation is presented in a framework of programming. (2) We obtain quadratic objective functions for participant in the valuation process. (3) Quasi demand and supply functions are derived from which we can simulate a market. (5) The special role of ecologists as experts and potential managers of a landscape is ad-dressed and (6), or finally, a balanced solution on values, value oriented management, and species...
Tipo: Conference Paper or Presentation Palavras-chave: Valuation; Cultural landscape; Species composition and nature provision by farms; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/43608
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Using Experimental Auctions for Marketing Applications: A Discussion AgEcon
Lusk, Jayson L..
The present article discusses general issues associated with experimental auctions and their relative advantages and disadvantages over other marketing research techniques. Experimental auctions create an active market environment with feedback where subjects exchange real goods and real money, which is not generally the case with other methods. The article also discusses four experimental design issues associated with experimental auctions: auction mechanism, market feedback and bidder affiliation, demand reduction and wealth effects, and multiple attribute valuation. Each of these experimental design issues, if not properly controlled, have the potential to create serious flaws in marketing recommendations.
Tipo: Journal Article Palavras-chave: Auctions; Experimental economics; Marketing; Valuation; Willingness-to-pay; D44; C92; Q13; M31.
Ano: 2003 URL: http://purl.umn.edu/43210
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An integrated simulation model to evaluate national policies for the abatement of agricultural nutrients in the Baltic Sea AgEcon
Hyytiainen, Kari; Ahtiainen, Heini; Heikkila, Jaakko; Helin, Janne; Huhtala, Anni; Iho, Antti; Koikkalainen, Kauko; Miettinen, Antti; Pouta, Eija; Vesterinen, Janne.
This study introduces a prototype model for evaluating policies to abate agricultural nutrients in the Baltic Sea from a Finnish national point of view. The stochastic simulation model integrates nutrient dynamics of nitrogen and phosphorus in the sea basins adjoining the Finnish coast, nutrient loads from land and other sources, benefits from nutrient abatement (in the form of recreation and other ecosystem services) and the costs of agricultural abatement activities. The aim of this study is to present the overall structure of the model and to demonstrate its potential using preliminary parameters. The model is made flexible for further improvements in all of its ecological and economic components. Results of a sensitivity analysis suggest that...
Tipo: Working or Discussion Paper Palavras-chave: Ecosystem services; Nutrient abatement; Monte Carlo simulation; Recreation; Valuation; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/49896
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On the Valuation of Companies with Growth Opportunities AgEcon
Dapena, Jose Pablo.
Each company faces day to day investment opportunities. Just by staying in business the company is taking a decision of reinvesting capital. These opportunities have to be fairly valued to overcome misallocation of resources. A project with high growth opportunities requires high reinvestments to take full advantage of them until it reaches its mature stage. These investments can be seen as a succession of call options on future growth. When a company with such prospects is valued using the discounted cash flow technique and growth is taken implicitly in the growing cash flows and the residual value, the value thus obtained will be higher than the true one (under certain circumstances). Technology advances and the effects of globalization create enormous...
Tipo: Journal Article Palavras-chave: Real options; Valuation; Contingent claims valuation; Financial Economics; G12.
Ano: 2003 URL: http://purl.umn.edu/44040
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VALUATION OF BIOTECHNOLOGY COMPANIES: REAL OPTIONS APPROACH UNDER UNCERTAINTY AgEcon
Ljumovic, Isidora; Cvijanovic, Janko; Lazic, Jelena.
Review article
Tipo: Article Palavras-chave: Risk; Real options; Valuation; Biotechnology; Agribusiness; Risk and Uncertainty; D04; D81; L65.
Ano: 2012 URL: http://purl.umn.edu/123958
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Is Embedding Entailed in Consumer Valuation of Food Safety Characteristics? AgEcon
Morkbak, Morten Raun; Christensen, Tove; Gyrd-Hansen, Dorte E.; Olsen, Soren Boye.
Consumers’ preferences for food safety characteristics are investigated with particular focus on existence of an embedding effect. Embedding exists if consumer valuation of food safety is insensitive to scope. Two choice experiments have been conducted valuing food safety in respectively minced pork and chicken breasts, exemplified by avoiding human risks of Salmonella infections and strengthening the restrictions of using antibiotics in the pork production and in terms of avoiding human risks of Salmonella and Campylobacter infections respectively. The results showed no indications of an embedding effect between the food safety characteristics, in neither of the cases.
Tipo: Conference Paper or Presentation Palavras-chave: Valuation; Choice Experiment; Market Goods; Food Safety; Embedding.; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety.
Ano: 2009 URL: http://purl.umn.edu/58099
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Land Preservation in British Columbia: An Empirical Analysis of the Factors Underlying Public Support and Willingness to Pay AgEcon
Androkovich, Robert A.; Desjardins, Ivan; Tarzwell, Gordon; Tsogaris, Peter.
This study extends previous empirical research on land preservation by considering an actual land preservation scheme, the agricultural land reserve in British Columbia, Canada. The reserve was established in 1973 to ensure that development did not occur on the province’s most productive agricultural land. ‘To ensure that local food production is maintained,’ ‘the economic importance of British Columbia’s agricultural sector,’ and ‘to protect the environment’ are the most important factors that underlie support for the reserve. Aggregate, provincewide willingness to pay to maintain the land reserve is substantial, with our most conservative estimate being Can$91.18 million per year.
Tipo: Journal Article Palavras-chave: Agriculture; Contingent; Land; Preservation; Valuation; Agribusiness; Agricultural Finance; International Development; Resource /Energy Economics and Policy; Q15; Q24; Q28; Q51.
Ano: 2008 URL: http://purl.umn.edu/47273
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Are Agricultural Measures for Groundwater Protection Beneficial When Compared to Purification of Polluted Groundwater? AgEcon
Hasler, Berit; Lundhede, Thomas.
The groundwater resource, the drinking water areas and the surface water quality can be protected by measures, e.g. by reductions of pesticide and nutrient applications, conversion of arable land to grasslands or forests etc. The objective of the paper is to estimate the benefits of groundwater protection by the valuation method choice experiments. This method allows for separate estimation and comparison of the different attributes connected to groundwater protection i.e. the effects on drinking water and surface water quality as compared to the benefits from cleaning and treatment of polluted drinking water to make it suitable for drinking water consumption. The results indicate that the benefits are significant, and that the willingness to pay for...
Tipo: Conference Paper or Presentation Palavras-chave: Groundwater; Pollution; Drinking water; Valuation; Choice experiments; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q25; Q26; Q28; C42; D62.
Ano: 2005 URL: http://purl.umn.edu/24587
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Modelos de valoracion en ambiente de incertidumbre AgEcon
Bellver, Jeronimo Aznar; Martinez, Francisco Guijarro.
Resumen En este trabajo se presentan diversos modelos de valoración en ambiente de incertidumbre que combinan información precisa e imprecisa. En el desarrollo de los mismos se ha extendido la técnica de programación por metas básica a modelos que permiten considerar intervalos en la expresión del precio o las variables explicativas del mismo, enunciando una serie de proposiciones con las que se obtiene un completo conocimiento sobre el grado de adecuación entre los valores observados en el precio y los valores estimados por la función de valoración. Así mismo, se ha formulado un índice de adecuación que permite comparar diferentes modelos obtenidos mediante la metodología propuesta. Palabras clave: Valoración, Incertidumbre, Programación por metas con...
Tipo: Journal Article Palavras-chave: Valuation; Uncertainty; Interval goal programming; Research Methods/ Statistical Methods; C61; G12; Q14.
Ano: 2004 URL: http://purl.umn.edu/28731
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The economic cost of wetland destruction AgEcon
Schmidt, Carmel Elizabeth.
Wetlands are often refereed to as the ‘kidney of the river’, but what is the value of the water filtration they provide, and what is the cost of wetland destruction? This paper determines the economic value of wetlands for water filtration. It demonstrates that wetlands are of considerable economic value, even where the volume of water filtered is in excess of that required for domestic consumption. It argues that if legislation required those who destroy natural wetlands to replace the water filtration process the wetlands once provided, it would be necessary to construct water filtration plants at significant cost.
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Wetlands; Water filtration; Valuation; Environmental Economics and Policy; Land Economics/Use; Political Economy.
Ano: 2008 URL: http://purl.umn.edu/5985
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BIDDING ON RAILCARS FOR GRAIN: A STRATEGIC ANALYSIS AgEcon
Wilson, William W.; Dahl, Bruce L..
Many of the U.S. railroads have introduced highly differentiated services for grain shipments in recent years, generally in the area of forward guaranteed car service. Taken together with other alternatives, these mechanisms have had the effect of establishing priority allocations among shippers. In most cases, pricing and allocation of these services has been with some type of bidding mechanisms. This paper explores the economic implications of these mechanisms on the grain shipping industry. A model was developed to identify factors affecting the value of these services and was analyzed in the context of a typical midwestern grain shipment. A game theory model of competitive bidding was also developed to analyze the effects of critical strategic...
Tipo: Working or Discussion Paper Palavras-chave: Railcars; Guaranteed car service; Railcar allocation; Options; Guarantee; Bidding models; Valuation; Marketing.
Ano: 1997 URL: http://purl.umn.edu/23168
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Analysis of Farm Household Preferences in the Management of Invasive Species: The Case of Miconia in Hawaii AgEcon
Chan-Halbrendt, Catherine; Yang, Fang; Thomas, Lynna; Pant, Archana.
A major threat to Hawaii's ecosystem is the spread of invasive plant species. One such species is Miconia calvescens. Given that this plant was originally introduced to Hawaii by the horticulture industry and has negative effects on agricultural productivity, it is logical to find the farm households' preference for the control of Miconia. Using Conjoint Choice Experiment methodology, this study designed a survey to measure farm households' preferences for Miconia calvescens control program attributes. Results of the surveys indicate that the farm households are willing to support Miconia control programs if they prevent severe soil erosion and loss of biodiversity.
Tipo: Journal Article Palavras-chave: Miconia; Invasive species; Hawaii; Farmers; Conjoint Choice Experiment; Valuation; Crop Production/Industries.
Ano: 2007 URL: http://purl.umn.edu/8189
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Some External Costs of Dairy Farming in Canterbury AgEcon
Tait, Peter R.; Cullen, Ross.
Intensification of agricultural practices is occurring in Canterbury. Dairy farm conversions continue with land use increasing 132% since 1995. Current concerns emanate predominantly from issues of water quantity and quality, in particular the degradation of lowland streams. These and other costs are not transmitted through markets for dairy products, these negative externalities represent allocation and equity concerns for regional policy makers. This study canvassed regional policy administrators, assembled available valuation studies and performed rudimentary calculations based on reviewed New Zealand literature to form an estimate of the external costs of dairy farming in Canterbury. External costs are estimated at $28.7 to $45 million annually. Using...
Tipo: Conference Paper or Presentation Palavras-chave: Negative externalities; Dairy farming; Valuation; Agricultural and Food Policy; Environmental Economics and Policy; Q51.
Ano: 2006 URL: http://purl.umn.edu/109595
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The Payment Vehicle Used in CV Studies of Environmental Goods Does Matter AgEcon
Ivehammar, Pernilla.
This paper examines the effect of the payment vehicle on the valuation of an environmental good with the contingent valuation method (CVM). Results from three CV studies comparing different payment vehicles by using split samples when valuing environmental encroachment caused by roads in Sweden are presented and compared to results from other such split-sample studies of payment vehicle effects. The results are consistent and show that the payment vehicle affects the valuation, but not always the way expected when considering incentives to behave strategically.
Tipo: Journal Article Palavras-chave: CVM; Payment vehicle; Split-sample tests; Valuation; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/57628
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Agriculture in a Water-Scarce World AgEcon
Gilmour, Brad; Jotanovic, Aleksandar; Gurung, Rajendra Kumar; Polcyn, Tania; Deng, Hugh.
With a relatively small population and 7% of the world's available freshwater resources, Canada is well placed for a world of water scarcity where the real value of water in its many uses becomes more and more apparent. However, action is necessary to ensure that Canada continues to benefit from the social, economic and environmental goods and services derived from water resources. Experience and analysis suggests that policy and incentives play critical roles in the sustainable exploitation of natural resources. In particular, properly valuing water in all its forms and uses appears to be critical. Analysis abroad has underlined the benefits of clearly delineating the roles of regulators, resource managers, infrastructure operators and service...
Tipo: Report Palavras-chave: Water; Governance; Scarcity; Incentives; Sustainability; Valuation; Accountability; Transparency; Environmental Economics and Policy; Institutional and Behavioral Economics; International Relations/Trade; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/46689
Registros recuperados: 64
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