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	Provedor de dados AgEcon (14) Autor SIMA, Technical Team (14) Palavra-chave Food security (14) Q18 (14) Food policy (13) Mozambique (13) Crop Production/Industries (6) Agricultural and Food Policy (2) Food Consumption/Nutrition/Food Safety (2) Food Security and Poverty (2) International Development (2) Productivity Analysis (2) Research and Development/Tech Change/Emerging Technologies (2) Emergency assistance (1) Food policy Mozambique (1) Marketing (1) Mais... Tipo do documento Report (14) Ano 2008 (1) 1998 (1) 1997 (6) 1996 (6) País United States (14) Idioma Inglês (14)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 137 Primeira ... 1 2 3 4 5 6 7 ... Última Valoración económica y social de un parque urbano de la Ciudad de México Colegio de Postgraduados Flores Xolocotzi,Ramiro. Se realizó un análisis de estudios de caso que demostró diversos problemas sociales en los parques urbanos del mundo, destacando un problema histórico de exclusión de grupos vulnerables como mujeres, hombres homosexuales, etnias/razas y personas con capacidades diferentes. Bajo una óptica de equidad e inclusión se sugiere que los planificadores de parques contemplen una visión paisajística que permita el desarrollo de un Sistema Integral de Espacios Verdes Citadinos que comprenda esquemas de participación ciudadana y herramientas ecológicas, sociales y económicas. Una de estás últimas, es la valoración económica a través de modelos de disposición de pago y que puede ser aplicada en análisis beneficio-costo bajo una perspectiva que integre aspectos sociales... Tipo: Tesis Palavras-chave: Discriminación; Espacio urbano; Valoración contingente; Doctorado; Forestal; Discrimination; Urban space; Contingent valuation. Ano: 2008 URL: http://hdl.handle.net/10521/1674 VISITOR PREFERENCES AND VALUES FOR WATER-BASED RECREATION: A CASE STUDY OF THE OCALA NATIONAL FOREST AgEcon Shrestha, Ram K.; Alavalapati, Janaki R.R.; Stein, Taylor V.; Carter, Douglas R.; Denny, Christine B.. We used the open-ended contingent valuation method to elicit willingnes to pay (WTP) for day visitors and extended visitors on the Ocala National Forest (ONF), Florida. A Tobit model specification was applied to account for the issues involved with censored WTP bids. The results reveal that visitors would pay more for improved recreational facilities at the ONF. In particular, our estimates show that visitors would pay $1 million for basic facilities, $1.9 million for moderate improvements, and $2.5 million for more improvements. Tipo: Journal Article Palavras-chave: Contingent valuation; Tobit analysis; Water-based recreation; Resource /Energy Economics and Policy; Q23; Q26. Ano: 2002 URL: http://purl.umn.edu/15069 Sensitivity of WTP Estimates to Definition of ‘Yes’: Reinterpreting Expressed Response Intensity AgEcon Kobayashi, Mimako; Rollins, Kimberly S.; Evans, M.D.R.. Willingness to pay (WTP) estimation typically involves some strategy for mapping nondichotomous contingent valuation (CV) responses onto a dichotomous yes/no dependent variable. We propose a new approach to selecting which responses qualify as ‘yes.’ We apply the proposed method to polychotomous CV data for preventative land management programs in the Great Basin. We also estimate WTP using other methods of response recoding found in the literature. By contrasting the results under different approaches, we demonstrate how and why WTP point estimates vary across recoding methods and discuss the comparative advantages of our more generalized recoding approach that is based on predicted probabilities of ‘yes’ responses. Tipo: Journal Article Palavras-chave: Contingent valuation; Great Basin; Invasive weeds; Land management; Polychotomous format; Response intensity; Response mapping; Wildfire; Environmental Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/59332 Combining Supply and Demand Estimates for Ecosystem Services from Cropland AgEcon Ma, Shan; Swinton, Scott M.; Lupi, Frank. Payment-for-Ecosystem-Services (PES) programs are gaining appeal as flexible approaches to inducing the voluntary provision of ecosystem services (ES). Farmers, who manage agricultural ecosystems, provide important nonmarket ecosystem services to the public by their choice of production inputs and management practices. Although there exist various PES programs in the United States and Europe, we are aware of none that was designed based on a comprehensive understanding of the underlying supply and demand of ecosystem services. Taking advantage of unique, coupled datasets of stated preferences, this paper combines a supply-side cost function of farmers’ willingness to adopt practices that provide increased ES with a demand-side social benefit function of... Tipo: Conference Paper or Presentation Palavras-chave: Payment-for-Ecosystem-Services (PES); Contingent valuation; Aggregate supply and demand; Cropland; Eutrophication; Greenhouse gas; Agricultural and Food Policy; Environmental Economics and Policy; Q11; Q51; Q57; Q58. Ano: 2011 URL: http://purl.umn.edu/103501 Was the NOAA Panel Correct about Contingent Valuation? AgEcon Carson, Richard T.; Hanemann, W. Michael; Kopp, Raymond J.; Krosnick, Jon A.; Mitchell, Robert C.; Presser, Stanley; Ruud, Paul A.; Smith, V. Kerry; Conaway, Michael; Martin, Kerry. The past few years have seen a highly charged debate about whether contingent valuation (CV) surveys can provide valid economic measures of people's values for environmental resources. In an effort to appraise the validity of CV measures of economic value, a distinguished panel of social scientists, chaired by two Nobel laureates, was established by NOAA, to critically evaluate the validity of CV measures of nonuse value. The Panel provided an extensive set of guidelines for CV survey construction, administration, and analysis, and distinguished a subset of items from their guidelines for special emphasis and described them as burden of proof requirements. Of particular interest was the Panel's requirement that CV surveys demonstrate "responsiveness to the... Tipo: Working or Discussion Paper Palavras-chave: Contingent valuation; Scope test; NOAA Panel; Environmental Economics and Policy; D6; H4. Ano: 1996 URL: http://purl.umn.edu/10503 WILLINGNESS TO PAY FOR AGRICULTURAL RESEARCH AND EXTENSION PROGRAMS AgEcon Clifford, William B.; Hoban, Thomas J.; Whitehead, John C.. The North Carolina Agriculture Survey was designed to estimate the willingness to pay for agricultural research and extension programs. We find that North Carolina households are willing to pay between $218 and $401 million for food production programs and between $251 and $698 million for water quality programs annually. We find evidence of divergent validity and differences in the willingness to pay estimates from the single-bound and multiple-bound data. Tipo: Journal Article Palavras-chave: Agricultural research and extension programs; Contingent valuation; Divergent validity; Multiple bound questions; Single bound questions; Demand and Price Analysis; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession. Ano: 2001 URL: http://purl.umn.edu/15294 SPLIT-SAMPLE TESTS OF "DON'T KNOW" AND "INDIFFERENT" RESPONSES IN AN ATTRIBUTE BASED CHOICE MODEL AgEcon Fenichel, Eli P.; Lupi, Frank; Hoehn, John P.; Kaplowitz, Michael D.. Tipo: Conference Paper or Presentation Palavras-chave: Stated preference; Contingent valuation; No opinion; Internet survey; Research Methods/ Statistical Methods. Ano: 2006 URL: http://purl.umn.edu/21070 DEMAND FOR CREDENCE CHARACTERISTICS IN BEEF AgEcon Kola, Jukka; Latvala, Terhi. The recent food crises in Europe have raised public concerns about the quality and safety of food. The growing concern among the consumers towards food safety issues has increased the demand for quality attributes. Most quality properties of food products can be considered as credence characteristics, quality of which cannot be inferred before the purchase, and sometimes not even after the purchase. The aim of this study is to evaluate, both qualitatively and quantitatively, the value of new information about and the information systems set for credence characteristics of beef. Economics of information is the theoretical framework. The quantitative approach focuses to measure the ex ante value of credence characteristics, and the method of contingent... Tipo: Conference Paper or Presentation Palavras-chave: Beef; Information; Credence attributes; Contingent valuation; Willingness to pay; Demand and Price Analysis. Ano: 2002 URL: http://purl.umn.edu/19703 THE ECONOMICS OF GREENING THE SOUTH AFRICAN NATIONAL ARTS FESTIVAL AgEcon Dobson, Blaise. The paper analyzes the broad history underpinning the concept of sustainable development and its context within the events industry and specifically with regards to the South African National Arts Festival. A pilot contingent valuation study conducted at the 2010 National Arts Festival determined that the average visitor was willing to pay an extra ZAR 2.30 (approximately US$ 0.30) per ticket for a recycling programme to be established to process the waste generated by the event. While the paper concluded that the theoretical basis of the study was sound, a larger sample size would have been preferred so as to enhance the model‘s predictive power Tipo: Journal Article Palavras-chave: Contingent valuation; Environmental externalities; Event greening; South African National Arts Festival; Sustainable development; Willingness to pay; Environmental Economics and Policy; Public Economics. Ano: 2010 URL: http://purl.umn.edu/107587 The Economic Value of Basin Protection to Improve the Quality and Reliability of Potable Water Supply: Some Evidence from Ecuador AgEcon Zapata, Samuel D.; Benavides, Holger M.; Carpio, Carlos E.; Willis, David B.. This study estimates the willingness to pay (WTP) of Loja’s households to protect two micro-basins that supply over 40 percent of potable water to the city. Results indicate that households have an average WTP of $5.80 per month, which corresponds to a 25 percent increase in the self-reported monthly water bill, to preserve the basins. Tipo: Conference Paper or Presentation Palavras-chave: Basin protection; Contingent valuation; Loja; Ecuador; Environmental Economics and Policy; Land Economics/Use. Ano: 2009 URL: http://purl.umn.edu/46773 An Information-Theoretic Approach to Modeling Binary Choices: Estimating Willingness to Pay for Recreation Site Attributes AgEcon Henry-Osorio, Miguel; Mittelhammer, Ronald C.. Information-Theoretic Econometrics Tipo: Presentation Palavras-chave: Minimum power divergence; Cressie-Read statistics; Contingent valuation; Empirical likelihood; Discrete choice; Binary response models; Environmental Economics and Policy; Research Methods/ Statistical Methods; C13; C14; C25; Q51. Ano: 2012 URL: http://purl.umn.edu/123432 Uncertainty in Individuals' Preferences for Non-commodity Outputs Provided by Rural Development Programs (RDPs): A Contingent Valuation Approach AgEcon Dominguez-Torreiro, Marcos; Solino, Mario. Rural development programs (RDPs) are currently envisaged as a means to foster the provision of a broad range of non-commodity outputs emanating from multifunctional rural environments. This paper presents a Contingent Valuation survey that analyses individuals’ perceptions of and willingness to pay (WTP) for the implementation of a RDP in Cantabria, Spain. Uncertainty in individuals’ preferences is explicitly acknowledged and introduced into our analytical framework. For that purpose, a comparison is made between the open-ended (OE) and the multiple bounded uncertainty (MBU) elicitation formats. According to our behavioural model estimates, the expectation of a positive welfare change for both rural and urban dwellers constitutes a sound argument in... Tipo: Conference Paper or Presentation Palavras-chave: Rural development policy; Non-commodity outputs; Contingent valuation; Elicitation formats; Uncertainty; Agricultural and Food Policy; Q0; Q18; Q51; R0. Ano: 2011 URL: http://purl.umn.edu/114437 Dynamic Processes in Contingent Valuation: A Case Study Involving the Mahogany Glider AgEcon Tisdell, Clement A.; Wilson, Clevo; Swarna Nantha, Hemanath. This paper reports the results of an experiment involving a sample of 204 members of the public who were assessed on three occasions about their willingness to pay for the conservation of the mahogany glider. They were asked this question prior to information being provided to them about the glider and other focal wildlife species; after such information was provided, and finally after participants had had an opportunity to see live specimens of this glider. The mean willingness to pay of the relevant samples are compared and found to show significant variations. Theories are considered that help explain the dynamics of these variations. Serious concerns are raised about the capacity of information provision to reveal ‘true’ contingent valuations of public... Tipo: Working or Discussion Paper Palavras-chave: Awareness; Contingent valuation; Dynamic processes; Experiential learning; Information; Wildlife; Willingness to pay; Environmental Economics and Policy; D83; D84; Q51; Q57. Ano: 2004 URL: http://purl.umn.edu/51414 Estimation of a Surface Water Quality Valuation Index for the Appalachian Region AgEcon Khatri-Chhetri, Arun; Collins, Alan R.. A surface water quality valuation index is developed and used to compare counties across the Appalachian Region. This index was based on a meta-analysis of non-market water quality valuation studies along with an application of benefit transfer. The results reveal that Pennsylvania, Georgia, and New York had the highest percentages of counties with high index values within the Appalachian Region. As this research was part of an inter-disciplinary team assembled by the Appalachian Regional Commission, results of this index can be compared to other indices computed for water resources in the region. Tipo: Conference Paper or Presentation Palavras-chave: Meta-analysis; Benefit transfer; Contingent valuation; Willingness-to-pay; Environmental Economics and Policy. Ano: 2011 URL: http://purl.umn.edu/103653 MEASURING CONSUMER BENEFITS OF FOOD SAFETY RISK REDUCTIONS AgEcon Buzby, Jean C.; Fox, John A.; Ready, Richard C.; Crutchfield, Stephen R.. Microbial pathogens and pesticide residues in food pose a financial burden to society which can be reduced by incurring costs to reduce these food safety risks. We explore three valuation techniques that place a monetary value on food safety risk reductions, and we present a case study for each: a contingent valuation survey on pesticide residues, an experimental auction market for a chicken sandwich with reduced risk of Salmonella, and a cost-of-illness analysis for seven foodborne pathogens. Estimates from these techniques can be used in cost/benefit analyses for policies that reduce food safety risks. Tipo: Journal Article Palavras-chave: Contingent valuation; Cost of illness; Experimental auction market; Food safety; Risk reduction; Salmonella; Food Consumption/Nutrition/Food Safety. Ano: 1998 URL: http://purl.umn.edu/15107 Chapter 15: CONTINGENT VALUATION OF CONSUMERS' WILLINGNESS TO PURCHASE PORK WITH LOWER SATURATED FAT AgEcon Halbrendt, Catherine K.; Sterling, Lesa; Snider, Sue; Santoro, Gail. This book was originally published by Westview Press, Boulder CO, 1995. Tipo: Book Chapter Palavras-chave: Pork products; Reduced saturated fat; Contingent valuation; Willingness to pay; Food Consumption/Nutrition/Food Safety. Ano: 1995 URL: http://purl.umn.edu/25979 Some Problems in Estimating Willingness to Pay with Contingent Valuation Surveys: Case for Consumer Acceptance of Genetically Modified Food AgEcon Chern, Wen S.; Kaneko, Naoya. This paper reports results from a U.S. national telephone survey on genetically modified foods. The objectives of this paper are to determine the effect of "indifference" response on the estimate of willingness to pay and to test the assumption of common marginal utility of income among respondents. Tipo: Conference Paper or Presentation Palavras-chave: Genetically modified foods; Contingent valuation; Willingness to pay; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety. Ano: 2007 URL: http://purl.umn.edu/34852 Influences of Knowledge of Wildlife Species on Patterns of Willingness to pay for their Conservation AgEcon Tisdell, Clement A.. Examines the influence of respondents’ knowledge of wildlife species on their willingness to pay for conservation of the individual species. It does so by using data generated by surveys of 204 individuals who participated in a structured experiment in which their knowledge of a selected set of wildlife species was increased. The species selected were Australian ones, mostly but not entirely, tropical ones. The species were divided into three taxa for the experiment; reptiles, mammals and birds. Each set of species in the taxa included some species expected to be poorly known initially and some anticipated to be well known. Respondents rated their knowledge of each species on a Likert scale, and changes in their average allocation of funds for the... Tipo: Working or Discussion Paper Palavras-chave: Australia; Contingent valuation; Environmental education; Environmental valuation; Knowledge; Wildlife conservation.; Environmental Economics and Policy. Ano: 2003 URL: http://purl.umn.edu/48972 The Net Benefit of Saving the Asian Elephant: A Policy and Contingent Valuation Study AgEcon Bandara, Ranjith; Tisdell, Clement A.. Reports results from a contingent valuation survey of willingness to pay for the conservation of the Asian elephant of a sample of urban residents living in three selected housing schemes in Colombo, the capital of Sri Lanka. Face–to–face surveys were conducted using an interview schedule. A non-linear logit regression model is used to analyse the respondents’ responses for the payment principle questions and to identify the factors that influence their responses. We investigate whether urban residents’ willingness to pay for the conservation of elephants is sufficient to compensate farmers for the damage caused by elephants. We find that the beneficiaries (the urban residents) could compensate losers (the farmers in the areas affected by human–elephant... Tipo: Working or Discussion Paper Palavras-chave: Asian elephant; Elephas maximus; Elephant conservation; Willingness to pay; Contingent valuation; Sri Lanka.; Environmental Economics and Policy; Farm Management. Ano: 2003 URL: http://purl.umn.edu/48968 Asymmetric Willingness-to-Pay Distributions for Livestock Manure AgEcon Norwood, F. Bailey; Luter, Ryan L.; Massey, Raymond E.. The Environmental Protection Agency's new Concentrated Animal Feeding Operations (CAFO) regulations are forcing some farms to export livestock manure to off-farm acres. The regulation compliance cost depends on the willingness of neighboring crop producers to accept or pay for the manure. This study estimates a manure willingness-to-pay distribution for crop producers using a contingent valuation mail survey. A flexible parametric distribution is borrowed from the crop yield literature, which shows that manure willingness to pay is left-skewed. Most crop producers in our sample will pay a positive price close to the savings in commercial fertilizer, but approximately 25% require a payment before accepting manure. Tipo: Journal Article Palavras-chave: Animal waste; Asymmetric distribution; Contingent valuation; Manure; Nonmarket valuation; Pollution; Willingness to pay; Environmental Economics and Policy. Ano: 2005 URL: http://purl.umn.edu/30972 Registros recuperados: 137 Primeira ... 1 2 3 4 5 6 7 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco