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	Provedor de dados AgEcon (18) Autor Lupi, Frank (4) Hoehn, John P. (2) Johnston, Robert J. (2) Jolejole, Christina B. (2) Kaplowitz, Michael D. (2) Rolfe, John (2) Swinton, Scott M. (2) Windle, Jill (2) Azevedo, Christopher D. (1) Bond, Craig A. (1) Boxall, Peter C. (1) Cameron, Trudy Ann (1) Davies, Stephen P. (1) De Groote, Hugo (1) Deshazo, J.R. (1) Englin, Jeffrey E. (1) Fenichel, Eli P. (1) Herriges, Joseph A. (1) Hoag, Dana L. (1) Johnson, Erica H. (1) Mais... Palavra-chave Stated preference (18) Q51 (6) Environmental Economics and Policy (5) Research Methods/ Statistical Methods (5) Demand and Price Analysis (4) Food Consumption/Nutrition/Food Safety (4) Consumer/Household Economics (3) Crop Production/Industries (3) Q18 (3) Agribusiness (2) Agricultural and Food Policy (2) Agricultural policy (2) Choice experiments (2) Collection mode (2) Hypothetical bias (2) Internet surveys (2) Paper-based surveys (2) Production Economics (2) Q12 (2) Q57 (2) Mais... Tipo do documento Conference Paper or Presentation (7) Journal Article (7) Working or Discussion Paper (2) Report (1) Thesis or Dissertation (1) Ano 2010 (6) 2009 (2) 2008 (2) 2007 (2) 2006 (3) 2005 (2) 2000 (1) Mais... País United States (18) Idioma Inglês (17) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 18 Primeira ... 1 ... Última A Battle of Taste and Environmental Convictions for Ecolabeled Seafood: A Contingent Ranking Experiment AgEcon Johnston, Robert J.; Roheim, Cathy A.. Consumers face pressure from environmental groups to modify their seafood purchase decisions based on concerns about fisheries' production practices. Existing research provides little information indicating whether seafood consumers are willing to change purchasing behavior based on a product's environmental attributes, to the exclusion of other attributes. We describe a contingent ranking experiment addressing preferences for fresh seafood, allowing for choices among different species, some displaying an ecolabel. Results suggest consumers consider overfishing sufficiently important to contemplate changing the species of fish they buy; however, they are unwilling to choose a less-favored species based solely on the presence of an ecolabel. Tipo: Journal Article Palavras-chave: Conjoint; Contingent ranking; Ecolabel; Seafood; Stated preference; Food Consumption/Nutrition/Food Safety. Ano: 2006 URL: http://purl.umn.edu/8617 An Application of Mixed Logit Estimation in the Analysis of Producers’ Stated Preferences AgEcon Kipperberg, Gorm; Bond, Craig A.; Hoag, Dana L.. This paper analyzes Colorado Corn producers’ preferences over both private- and environmental public-good production system attributes. Current production practices are characterized by intensive water and chemical use, resulting in non-point source pollution to water bodies as well as soil erosion problems. Data from a stated preference survey are employed to analyze key attributes of experimentally configured irrigation systems, proposed as alternatives to current practices. Panel mixed logit estimations find positive preferences for profit, risk reduction, and, importantly, systems with less environmental impact in terms of nitrate leaching and soil erosion. The results also find presence of significant preference heterogeneity and a complementary... Tipo: Working or Discussion Paper Palavras-chave: Agricultural production; Profit-maximization; Environment; Mixed logit; Stated preference; Attribute part-worth; Nitrate leaching; Soil erosion; Risk; Crop Production/Industries; C10; D62; Q12; Q15; Q51. Ano: 2008 URL: http://purl.umn.edu/108719 An Improved Method for Calibrating Purchase Intentions in Stated Preference Demand Models AgEcon Davies, Stephen P.; Loomis, John B.. The Orbit demand model allows the magnitude of the calibration to stated purchase intentions to vary based on the magnitude of the stated quantities. Using an empirical example of stated trips, we find that the extent of calibration varies substantially with less correction needed at small stated trips (–25%) but larger corrections at higher quantities of stated visits (–48%). We extend the Orbit model to calculate consumer surplus per stated trip of $26. Combining the calibrations in stated trips and value per trip, the Orbit model provides estimates of annual benefits from 60% to 111% less than the count data model. Tipo: Journal Article Palavras-chave: Hypothetical bias; Orbit; Ordered probit model; Travel cost model; Recreation; Stated preference; Agribusiness; Agricultural Finance; Consumer/Household Economics; Demand and Price Analysis; Financial Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics; Marketing; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods; D12; H44; Q26; Q51. Ano: 2010 URL: http://purl.umn.edu/100521 Ask a Hypothetical Question, Get a Valuable Answer? AgEcon Azevedo, Christopher D.; Herriges, Joseph A.; Kling, Catherine L.. This paper models the recreation demand for Iowa wetlands, combining survey data on both actual usage patterns (i.e., revealed preferences) and anticipated changes to those patterns under hypothetical increases in trip costs (i.e., stated preferences). We formulate and test specific hypotheses concerning potential sources of bias in each data type. We consistently reject consistency between the two data sources, both in terms of implied wetland values and underlying preference parameters. Careful attention is paid to the interpretations of the test results, noting particularly how the interpretation of the same results can vary with the "school of thought" of the reader. Tipo: Working or Discussion Paper Palavras-chave: Revealed preference; Stated preference; Recreation; Wetlands; Research Methods/ Statistical Methods. Ano: 2000 URL: http://purl.umn.edu/18418 Atributos relevantes no transporte de granéis agrícolas: preferência declarada pelos embarcadores AgEcon Martins, Ricardo Silveira; Lobo, Debora da Silva; Pereira, Sandra Mara. The objective of this study was to identify the relevant attributes of the services offered for the transporter, under the point of view of the shipper. The understanding of the preferences of the users of the transport services is important for the identification of the necessities and developments waited in the market. The relevant attributes had been raised under the bedding technician of the declared preference, in the form of ranking, using the method of confusing in the application of the cards to the shippers of grains in the state of the Paraná. The results had signaled for a significant concern with the fulfillment of contracts with customers and commitments in the ports and ships. As it could be evidenced, the shippers reflect the concern of the... Tipo: Journal Article Palavras-chave: Transport demand; Logistics; Brazilian agribusiness; Stated preference; Agribusiness. Ano: 2005 URL: http://purl.umn.edu/56736 Can Calibration Reconcile Stated and Observed Preferences? AgEcon Norwood, F. Bailey. Hypothetical bias is a pervasive problem in stated-preference experiments. Recent research has developed two empirically successful calibrations to remove hypothetical bias, though the calibrations have not been tested using the same data or in a conjoint analysis. This study compares the two calibrations in a conjoint analysis involving donations to a public good. Results find the calibrations are biased predictors of true donations but that calibrated and uncalibrated models together provide upper and lower bounds to true donations. Tipo: Journal Article Palavras-chave: Calibration; Experimental economics; Forecasting; Hypothetical bias; Public goods; Stated preference; Voluntary contributions; Research Methods/ Statistical Methods; Q51; H41. Ano: 2005 URL: http://purl.umn.edu/43735 Comparing Accuracy and Costs of Revealed and Stated Preferences: The Case of Consumer Acceptance of Yellow Maize in East Africa AgEcon Kimenju, Simon Chege; De Groote, Hugo; Morawetz, Ulrich B.. For quite a while, stated preferences have been a major tool to measure consumer preferences for new products and services. Revealed preference methods, in particular experimental economics, have gained popularity recently because they have been shown to be more incentive compatible, and therefore more accurate. However, this advantage comes at the expense of higher survey costs. In the developing countries with limited funding for research, it is important to determine whether the extra cost can be justified by the extra gain in accuracy. A survey of 100 farmers was carried out in Western Kenya to determine consumer preference for yellow maize using the contingent valuation, choice experiments and experimental auction methods. Experimental auctions... Tipo: Conference Paper or Presentation Palavras-chave: Kenya; Maize; Consumer; Experimental auctions; Stated preference; WTP; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; D6; Q12. Ano: 2006 URL: http://purl.umn.edu/25642 Comparing responses from web and paper-based collection modes in a choice modelling experiment AgEcon Windle, Jill; Rolfe, John. Comparing responses from web and paper-based collection modes in a choice modelling experiment Tipo: Conference Paper or Presentation Palavras-chave: Web-based surveys; Internet surveys; Paper-based surveys; Stated preference; Collection mode; Choice experiments; Environmental Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/59261 Comparing responses from web and paper-based collection modes in a choice modelling experiment AgEcon Windle, Jill; Rolfe, John. To determine whether the collection mode affects sample characteristics and value estimates, paper-based (using drop-off/pick-up) and web-based (using an internet panel) modes were tested. The exercise elicited values from Brisbane respondents for future environmental improvement of the Great Barrier Reef. The total per survey cost of the paper-based survey was approximately $70 per survey. The survey took three months to complete. In contrast, the online survey cost approximately $15 per survey and took two weeks to complete. The results show there were no differences in gender, education and income levels between the two groups. In the internet group, however, there were more younger and fewer older people. A comparison of the respondents’... Tipo: Report Palavras-chave: Web-based surveys; Internet surveys; Paper-based surveys; Stated preference; Collection mode; Choice experiments.; Environmental Economics and Policy; Research Methods/ Statistical Methods. Ano: 2009 URL: http://purl.umn.edu/94941 Fire and Recreational Values in Fire-Prone Forests: Exploring an Intertemporal Amenity Function Using Pooled RP-SP Data AgEcon Boxall, Peter C.; Englin, Jeffrey E.. An important consideration in managing fire-prone forests is the intertemporal impacts of forest fires. This analysis examines these impacts in a forest recreation setting by fitting a combined stated and revealed data set to explicitly model the effects of forest regrowth following a fire on recreation economic values. The results are particularly useful as they provide clear measures of the time path of recovery of forest amenity values following a fire. Tipo: Journal Article Palavras-chave: Forest fire; Recreation valuation; Revealed preferences; Stated preference; Travel cost model; Resource /Energy Economics and Policy. Ano: 2008 URL: http://purl.umn.edu/36703 Incentives to Supply Enhanced Ecosystem Services from Cropland AgEcon Jolejole, Christina B.; Swinton, Scott M.; Lupi, Frank. This paper examines the willingness of farmers to participate in hypothetical programs that would pay them to adopt cropping practices that enhance provision of ecosystem services from agriculture. A survey of 3,000 Michigan corn and soybean farmers elicited willingness to adopt four sets of cropping practices that reflected increasing levels of environmental stewardship. Acreage enrollments in the programs were modeled using hurdle models. The acreage that farmers would be willing to enroll depends chiefly on farm size and the perception of environmental improvements from the practices. For farms over 500 acres, the payment offered was also a significant inducement to acreage enrollment in all systems examined. This paper advances the literature on... Tipo: Thesis or Dissertation Palavras-chave: Willingness to participate; Willingness to accept; Stated preference; Supply response; Ecosystem services; Payment for environmental services; Agricultural policy; Agro-environmental policy; Environmental policy; Corn; Soybean; Environmental Economics and Policy; Q18; Q51; Q57. Ano: 2009 URL: http://purl.umn.edu/49356 'Scenario Adjustment' in Stated Preference Research AgEcon Cameron, Trudy Ann; Deshazo, J.R.; Johnson, Erica H.. To assess demand for non-market goods, researchers must sometimes resort to direct elicitation of consumer tradeoffs with the use of surveys. Stated preference (SP) methods typically involve surveys of consumers wherein choice scenarios are posed to respondents and individuals are asked to indicate their preferred alternatives. As SP research has matured, much progress has been made to address a variety of well-known biases that can afflict demand estimates produced by these methods, but some concerns still remain. We use an existing survey designed to ascertain willingness to pay for private health-risk reduction programs to illustrate yet another potential source of bias. This bias is caused when not all respondents answer exactly the choice question... Tipo: Conference Paper or Presentation Palavras-chave: Value of a statistical life; Value of a statistical illness profile; Health risk reductions; Stated preference; Scenario rejection; Scenario adjustment; Demand and Price Analysis; Q51. Ano: 2007 URL: http://purl.umn.edu/9739 Spanish Wine Consumer Behaviour: A Stated and Revealed Preferences Analysis AgEcon Nadhem, Mtimet; Miguel, Albisu Luis. Overall wine consumption in Spain is decreasing while, at the same time, Designation of Origin (DO) wine consumption is increasing gradually. This study examines Spanish DO wine consumer behaviour through stated preferences (SP) and revealed preferences (RP) data. Part-worth utilities are calculated and results from both analyses are compared to look for similarities and differences between what respondents say on surveys and what they really do on real purchases. Consumer segmentation is undertaken based on purchase frequencies. In a second step, we try to pool the two data sources in order to get more meaningful and robust results. Results indicate similarities in the consumer choice process when comparing the two data sources, especially for the... Tipo: Conference Paper or Presentation Palavras-chave: Wine; Consumer behaviour; Spain; Stated preference; Revealed preference; DO; Consumer/Household Economics. Ano: 2007 URL: http://purl.umn.edu/9431 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 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 Why Farmers Opt Not to Enroll in Payment-for-Environmental-Services Programs AgEcon Ma, Shan; Swinton, Scott M.; Lupi, Frank; Jolejole, Christina B.. Payment-for-environmental-services (PES) programs are the focus of increasing attention globally. While existing PES programs can observe who participates and who does not, the reasons for nonparticipation can be opaque. Taking advantage of a unique stated preference data set that includes a follow-up question on conditions for participation, this study differentiates two types of non-participants, those deterred by insufficient payments, and those deterred by fundamental incompatibility with the farm operation. Survey weighted and spatially weighted probit models are applied to examine the determinants of farmers’ willingness to enroll in PES programs and their willingness to consider enrollment at the same or a high payment. Results suggest the decision... Tipo: Conference Paper or Presentation Palavras-chave: Payment-for-environmental-services; Agricultural policy; Non-participation; Working land; Stated preference; Spatial probit; Agricultural and Food Policy; Environmental Economics and Policy; Production Economics; Q18; Q51; Q57. Ano: 2010 URL: http://purl.umn.edu/61392 Willingness to Pay for Water Quality Improvements in the United States and Canada: Considering Possibilities for International Meta-Analysis and Benefit Transfer AgEcon Johnston, Robert J.; Thomassin, Paul J.. This paper presents a multinational meta-analysis estimated to identify systematic components of willingness to pay for surface water quality improvements, developed to support benefit transfer for Canadian policy development. Metadata are drawn from stated preference studies that estimate WTP for water quality changes affecting aquatic life habitats—a type of study with few Canadian examples. The goals of this paper are to assess the properties of a multinational (United States/Canada) meta-analysis compared to a single-country (U.S.) analog; illustrate the potential information that may be derived as well as the analytical challenges; and assess the performance of resulting meta-functions for benefit transfer. Tipo: Journal Article Palavras-chave: Meta-regression analysis; Stated preference; Water quality; Willingness to pay; Benefit cost analysis; Environmental Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/59341 Would Subsidizing a Food Pathogen Vaccine Upset the Food Policy Applecart AgEcon Marette, Stephan; Roe, Brian E.; Teisl, Mario F.. Vaccines against several common foodborne pathogens are being developed and could substantially alter the policy tools available to address foodborne illness. However, little analysis is available to suggest how social welfare would be affected by these new vaccines. To address this void, we use stated preference data to estimate consumer willingness to pay (WTP) for food safety vaccines and then simulate the welfare impacts on related commodity markets of subsidizing consumer purchases of the vaccine within a partial equilibrium framework. To obtain consumer demand for the vaccine from the stated preference data, we simultaneously estimate model parameters in an econometrically coherent manner that recognizes the recursive nature of responses to... Tipo: Conference Paper or Presentation Palavras-chave: Food safety; Vaccine; Partial equilibrium; Welfare analysis; Stated preference; Food policy; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Risk and Uncertainty; D81; Q11; Q18. Ano: 2010 URL: http://purl.umn.edu/61480 Registros recuperados: 18 Primeira ... 1 ... Última

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