Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Demand for Organic and Conventional Fruits AgEcon
Lin, Biing-Hwan; Yen, Steven T.; Huang, Chung L..
We examine consumer demand for organic and conventional fruits by estimating a censored demand system, using Nielsen's Homescan data. Sociodemographic characteristics and income are found to be significant factors of organic fruit consumption. Consumers are responsive to own-price changes in selected organic fruits, while the own-price elasticities for conventional fruits are much smaller. Asymmetric cross-price effects are found between organic and conventional fruits, suggesting that a change in relative prices will more likely cause consumers of conventional fruits to "cross-over" to organic fruits, while the reverse is less likely to happen such that organic consumers will "revert" to conventional fruits.
Tipo: Conference Paper or Presentation Palavras-chave: Organic fruit; Homescan data; Censored demand system; Two-step estimation; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/6440
Imagem não selecionada

Imprime registro no formato completo
Estimating price elasticities of food trade functions: How relevant is the gravity approach? AgEcon
Femenia, Fabienne; Gohin, Alexandre.
The main objective of the paper is related to the long standing issue of the econometric estimation of price elasticity of food trade functions. We investigate the relevance of the prominent gravity approach. This approach is based on the assumptions of symmetric, monotone, homothetic, CES preferences. We test all these assumptions using European intra trade of cheese. In a general way, all assumptions made on preferences by the gravity approach are not supported by our data set. The bias induced on the estimated price elasticities is not univocal.
Tipo: Working or Discussion Paper Palavras-chave: Elasticities; Trade; Generalized Maximum Entropy; Censored demand system; International Relations/Trade.
Ano: 2007 URL: http://purl.umn.edu/7211
Imagem não selecionada

Imprime registro no formato completo
Estimation of a Censored AIDS Model: A Simulated Amemiya-Tobin Approach AgEcon
Dong, Diansheng; Kaiser, Harry M..
Kuhn-Tucker approach and its dual have been proposed to the demand system estimation when there are non-negativity bindings. However, empirical researchers have been struggling two decades in applying this method into practice due to: (1) the difficulty in derivation of a coherent econometric model, and (2) the cumbersome evaluation of high order probability integrals needed in parameter estimation. In this paper, we avoid the above two issues by using the Amemiya-Tobin demand system approach and the simulation procedure to evaluate the probability integrals. An AIDS model is estimated and the elasticities are obtained that are impossible to achieve when using Kuhn-Tucker approach. The model is applied to an analysis of Canadian household food demand.
Tipo: Technical Report Palavras-chave: Amemiya-Tobin; Censored demand system; AIDS model; Probability simulation; Canadian household food demand; Demand and Price Analysis; Research Methods/ Statistical Methods; C34; D12.
Ano: 2003 URL: http://purl.umn.edu/122113
Imagem não selecionada

Imprime registro no formato completo
Estimation of a Censored Demand System in Stratified Sampling: An Analysis of Mexican Meat Demand at the Table Cut Level. AgEcon
Lopez, Jose Antonio; Malaga, Jaime E..
Evidence of meat trade in the form of table cuts suggests that consumer preferences and tastes vary across meat cuts. Unlike previous studies, this paper estimates demand elasticities at the table cut level from a Mexican survey of household incomes and expenditures, which is a stratified sample. The study uses the two-step estimation of a censored demand system proposed by Shonkwiler and Yen (1999) but incorporates stratification variables into the estimation procedure. Parameter estimates are reported and its standard errors are approximated by using the bootstrap procedure.
Tipo: Conference Paper or Presentation Palavras-chave: Censored demand system; Two-step estimation procedure; Stratified sampling; Mexican meat demand; Elasticities; Adult equivalent scales; Bootstrap standard errors; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Q11.
Ano: 2009 URL: http://purl.umn.edu/46294
Imagem não selecionada

Imprime registro no formato completo
Forecast and Simulation Analysis of Mexican Meat Consumption at the Table Cut Level: Impacts on U.S. Exports. AgEcon
Lopez, Jose Antonio; Malaga, Jaime E..
An analysis of current and forecasted Mexican meat consumption and imports is presented at the table cut level of disaggregation. Unlike previous studies, this study uses adult equivalence scales, a price imputation approach, a consistent censored demand system, and estimation techniques from stratified sampling. The results indicate that most Mexican consumption and imports of table cuts of meats grow at different rates. In addition, Mexico seems to be following the U.S. preferences for beef cuts, but it does not seem to be following the U.S. preferences for chicken cuts. The study may help U.S. and Canadian meat exporters in forecasting future exports to Mexico, conducting long-term meat investment decisions, or identifying trends in the consumption of...
Tipo: Conference Paper or Presentation Palavras-chave: Forecast of Mexican meat consumption; Forecast of Mexican imports; U.S. meat exports to Mexico; Mexican meat demand elasticities; Meat analysis at the table cut level; Censored demand system; Two-step estimation procedure; Stratified sampling; Agribusiness; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Q11.
Ano: 2009 URL: http://purl.umn.edu/51986
Imagem não selecionada

Imprime registro no formato completo
Forecast and Simulation Analysis of Mexican Meat Consumption at the Table Cut Level: Impacts on U.S. Exports. AgEcon
Lopez, Jose Antonio; Malaga, Jaime E..
This is the poster presentation. Please refer to the full paper for details.
Tipo: Conference Paper or Presentation Palavras-chave: Forecast of Mexican meat consumption; Forecast of Mexican imports; U.S. meat exports to Mexico; Mexican meat demand elasticities; Meat analysis at the table cut level; Censored demand system; Two-step estimation procedure; Stratified sampling; Agribusiness; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Q11.
Ano: 2009 URL: http://purl.umn.edu/52382
Registros recuperados: 6
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