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| Registros recuperados: 44 | |
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| Yen, Steven T.; Su, Shew-Jiuan. |
| A heteroscedastic double-hurdle model is used to investigate household butter consumption in the United States. Results suggest that failure to incorporate heteroscedastic errors may lead to unreliable elasticity estimates. Decomposition of the effects of variables leads to insightful information and makes the double-hurdle model a more useful tool in micro demand analysis. Larger and higher-income households are more likely to consume butter than others and also consume more, but income elasticity is very small. Age, region, and seasonality are among the other significant determinants of household butter consumption. |
| Tipo: Journal Article |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 1995 |
URL: http://purl.umn.edu/31471 |
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| Davis, Christopher G.; Blayney, Donald P.; Cooper, Joseph C.; Yen, Steven T.. |
| This study examines retail fluid milk products purchase data from Nielsen 2005 home scan data. The demand for seven categories of fluid milk products were estimated: whole milk, whole flavored milk, reduced fat milk, flavored reduced fat milk, buttermilk, canned milk and all other fluid milk products. Analyses of the purchases of seven fluid milk categories based on the Nielsen 2005 home scan retail data are used to determine the roles marital status, age, race, education, female employment status and location play in the empirical estimations of aggregate demand elasticities. To derive the demand elasticities, a censored translog demand system is used. The results reveal that price and income are the main determinants of demand for fluid milk products... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nielsen home scan retail data; Milk demand; Elasticities; Fluid milk; Reduced fat milk; Whole milk; Flavored milk; Canned milk; Buttermilk; Non-linear AIDS; Censored translog demand system; Consumer/Household Economics; Demand and Price Analysis; C25; D12; Q11. |
| Ano: 2009 |
URL: http://purl.umn.edu/51791 |
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| Yen, Steven T.; Lin, Biing-Hwan; Harris, James Michael; Ballenger, Nicole. |
| To obtain a healthier diet, Americans need to consume not only more vegetables, but also a healthier mix of vegetables. Household demands for eight categories of vegetables are investigated, using ACNielsen's Homescan data. A maximum simulated likelihood estimation procedure results in elasticity estimates which are somewhat larger than those obtained from both time-series and cross-section data in the literature. Even these larger elasticities are not large enough to bridge the dietary consumption gap without, and possibly even with, substantial price or food expenditure subsidies. Furthermore, Homescan data do indicate some significant differences in preferences for types of vegetables by household characteristics, such as race and ethnicity. This... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2004 |
URL: http://purl.umn.edu/20059 |
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| Gould, Brian W.; Yen, Steven T.. |
| A growing trend in demand analysis during the last two decades is the use of household survey data. Detailed demographic information collected in these surveys allows treatment of heterogeneous preference and the typically large sample also allows estimation of large demand system that are otherwise not possible with aggregate time series. However, the use of household-level data is complicated by the censoring of the dependent variable especially for systems with disaggregated commodity definitions. To overcome the numerical problem of evaluating truncated multi-dimensional error term distributions, a Quasi-maximum likelihood method is used to estimate a censored 9-commodity demand system for a sample of urban Mexican households. The impacts of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2002 |
URL: http://purl.umn.edu/19667 |
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| Yen, Steven T.; Huang, Chung L.. |
| Demands for beef products are investigated using the U.S. Department of Agriculture's 1987-88 Nationwide Food Consumption Survey data. The censored translog demand system is estimated with full-information and simulated maximum-likelihood procedures. These procedures represent different approaches to evaluation of multiple probability integrals in the likelihood function, but produce very similar parameter and elasticity estimates. Findings suggest sociodemographic variables play important roles in the demand for beef, and that demand for different cuts of beef should be treated differently. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2002 |
URL: http://purl.umn.edu/31124 |
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| Yen, Steven T.; Jensen, Helen H.. |
| The double-hurdle and infrequency-of-purchase models are applied to pork and cheese consumption using the 1987-88 Nationwide Food Consumption Survey data. The models are generalized with the inverse hyperbolic sine transformation in the dependent variable, and this transformation results in a more flexible parameterization and error distribution than the untransformed models. Nonnested LR tests suggest that the IHS double-hurdle model provides better characterization of the data-generating process in household pork consumption than the IHS infrequency-of-purchase model but the elasticities derived from these models are similar. For household cheese consumption, the two models fit the data equally well. The IHS double-hurdle model and the IHS... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 1995 |
URL: http://purl.umn.edu/18682 |
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| Lin, Chung-Tung Jordan; Jensen, Kimberly L.; Yen, Steven T.. |
| Each year, microbial pathogens cause millions of cases of foodborne disease and result in many hospitalizations and deaths. Effective consumer education programs to promote safer food handling practices and other averting behaviors may benefit from consumer awareness of microbial pathogens. This paper investigates U.S. consumers' awareness of four major microbial pathogens (Salmonella, Campylobacter, Listeria and E. coli) as food safety problems, using a multinomial probit model. The awareness varies among pathogens and the variations appear to be related to differences in the number and severity of illnesses associated with these pathogens. Our findings suggest that awareness of microbial pathogens is associated with food safety perceptions, awareness of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2004 |
URL: http://purl.umn.edu/20301 |
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| Lin, Biing-Hwan; Yen, Steven T.; Davis, Christopher G.. |
| We investigate the roles of consumer knowledge and sociodemographic factors in the consumption of meat products at home and away from home, using data from the Continuing Survey of Food Intakes by Individuals and its companion Diet and Health Knowledge Survey conducted by the US Department of Agriculture. The sample used contains individuals not consuming some of the products. In addition, diet knowledge is potentially endogenous because it is likely to be affected by unobserved factors which also affect meat consumption. It is well known that traditional estimation procedures not accounting for censored dependent variables or simultaneity produce biased estimates. These econometric issues are addressed by developing a simultaneous -equations system,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety. |
| Ano: 2006 |
URL: http://purl.umn.edu/25258 |
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| Registros recuperados: 44 | |
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