Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 5
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Testing Welfare Measurement Gains of Combining Stated and Revealed Preferences Methods Using Count Data Models AgEcon
Gonzalez, Juan Marcos; Loomis, John B.; Gonzalez-Caban, Armando.
This research updates the joint estimation of revealed and stated preference data of Cameron (1992) to allow for joint estimation of the Travel Cost Method (TCM) portion using count data models. Further these count data models reflect correction for truncation and endogenous stratification associated with commonly used on-site recreation sampling. Our updated modeling framework also allows for testing of consistency of behavior between revealed and stated preference data rather than imposing it. Our empirical example is river recreation visitors to the Caribbean National Forest in Puerto Rico. For this data set we find consistency between revealed preference and stated preference data. We also find little gain in estimation efficiency in our data. This may...
Tipo: Conference Paper or Presentation Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2006 URL: http://purl.umn.edu/21203
Imagem não selecionada

Imprime registro no formato completo
A Joint Estimation Method to Combine Dichotomous Choice CVM Models with Count Data TCM Models Corrected for Truncation and Endogenous Stratification AgEcon
Gonzalez, Juan Marcos; Loomis, John B.; Gonzalez-Caban, Armando.
We update the joint estimation of revealed and stated preference data of previously published research to allow for joint estimation of the Travel Cost Method (TCM) portion using count data models. The TCM estimation also corrects for truncation and endogenous stratification as well as overdispersion. The joint estimation allows for testing consistency of behavior between revealed and stated preference data rather than imposing it. We find little gain in estimation efficiency, but our joint estimation might make a significant improvement in estimation efficiency when the contingent valuation scenarios involve major changes in site quality not reflected in the TCM data.
Tipo: Journal Article Palavras-chave: Contingent valuation models; Joint estimation; Nonmarket valuation; Recreation; Travel cost models; Agribusiness; Demand and Price Analysis; Productivity Analysis; Q51.
Ano: 2008 URL: http://purl.umn.edu/47207
Imagem não selecionada

Imprime registro no formato completo
THE IMPORTANCE OF THE MARKET AREA DETERMINATION FOR ESTIMATING AGGREGATE BENEFITS OF PUBLIC GOODS: TESTING DIFFERENCES IN RESIDENT AND NONRESIDENT WILLINGNESS TO PAY AgEcon
Loomis, John B.; Gonzalez-Caban, Armando.
A combined telephone contact-mail booklet-telephone interview of California and New England households regarding their willingness to pay for fire management in California and Oregon's old-growth forests was performed to test hypotheses regarding the spatial extent of the public goods market. Using a multiple-bounded contingent valuation question, the study found that New England households' annual willingness to pay for the California and Oregon programs was statistically different from zero. This analysis points out that households receive benefits from fire protection of old-growth forests in states other than their own. In this case study, limiting the survey sample to state residents where the National Forest is located would reflect about 20% of...
Tipo: Journal Article Palavras-chave: Consumer/Household Economics.
Ano: 1996 URL: http://purl.umn.edu/31404
Imagem não selecionada

Imprime registro no formato completo
TESTING FOR DIFFERENTIAL EFFECTS OF FOREST FIRES ON HIKING AND MOUNTAIN BIKING DEMAND AND BENEFITS AgEcon
Loomis, John B.; Gonzalez-Caban, Armando; Englin, Jeffrey E..
Surveys of visitors to National Forests in Colorado were conducted to determine whether different fire ages and presence of crown fires have different effects on hiking and mountain biking recreation visits and benefits. Actual and intended behavior data were combined using a count-data travel cost model. The intended behavior trip questions asked about changes in number of trips due to the presence of a high-intensity crown fire, prescribed fire, and a 20-year-old high-intensity fire at the area respondents were visiting. Using the estimated recreation demand function, years since a non-crown fire had statistically significant positive effect on the trip demand of hikers. In contrast, presence of crown fires had no statistically significant effect on...
Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2001 URL: http://purl.umn.edu/31049
Imagem não selecionada

Imprime registro no formato completo
Spatial Limits of the TCM revisited: Island Effects AgEcon
Loomis, John B.; Gonzalez-Sepulveda, Juan Marcos; Gonzalez-Caban, Armando.
The purpose of this paper is to address a problem that may arise with the assumption of a continuous spatial market in the TCM model. We find that this assumption can be challenged by geographical limitations that an area of study might have. Particularly for islands (or isolated island-like areas) that have a valuable non-market resource or good, the spatial market characteristic of the TCM model might be limited or truncated. The geographical truncation limits the observed maximum travel cost of the demand curve falsely implying a lower WTP than otherwise. The study uses a dichotomous choice CVM to confirm that the resulting demand schedules from the TCM underestimates WTP for day trips to the Caribbean National Forest in Puerto Rico. This results in a...
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2007 URL: http://purl.umn.edu/9088
Registros recuperados: 5
Primeira ... 1 ... 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

Valid HTML 4.01 Transitional