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| Registros recuperados: 105 | |
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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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| Unnevehr, Laurian J.; Jensen, Helen H.. |
| Current policies designed to improve food safety rely on regulation and market incentives. However, the mix of both private and public incentives to improve food safety and the dynamics of industry response to regulation make analysis of the costs of food safety complex. The paper provides an overview of costs of food safety regulation and control in recent literature for both pesticide and microbial controls and draws lessons for identifying cost-effective food safety approaches. Four lessons emerge concerning industry compliance costs. First, the distribution of costs is likely to be more important than market price effects. Second, regulation has an impact on long-run incentives to invest in new technologies or inputs and therefore may bias the nature... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Economic costs of food safety; Food safety; Regulation; Risk assessment; Industrial Organization. |
| Ano: 2001 |
URL: http://purl.umn.edu/18559 |
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| Opsomer, Jean D.; Jensen, Helen H.; Nusser, Sarah M.; Drignei, Dorin; Amemiya, Yasuo. |
| This paper reviews the statistical properties of the model used to obtain estimates of the prevalence and severity of poverty-linked food insecurity and hunger in the United States. The U.S. Department of Agriculture has annually sponsored data collection efforts to obtain information on food insecurity and hunger since 1995. The assessment of household food insecurity is based on a one-parameter logistic item response model, also referred to as a Rasch model, and applied to a series of 18 questions reported in the Current Population Survey Food Security Module. The paper was used as the basis for discussions concerning future directions of research on the food insecurity measure. This report was originally released in July 1999. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Security and Poverty. |
| Ano: 2002 |
URL: http://purl.umn.edu/18442 |
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| Dong, Fengxia; Hennessy, David A.; Jensen, Helen H.; Park, Timothy A.. |
| The most widely used measure of milk hygiene is Somatic Cell Count (SCC), where low SCC values indicate more wholesome milk. Dirt, often associated with grazing, carry bacteria and these bacteria can cause mastitis. Milk from cows with mastitis generally has higher SCC levels and cows with mastitis are most readily treated with antibiotics. Milk with high SCC is penalized by distributers as it is difficult to process and is not considered as wholesome in fluid markets. Grazing cows is common for many organic farmers. However, regulators prohibit antibiotic use under organic production. Intensive management protocols, maintaining equipment, and closely managing the herd’s environment offer substitutes for antibiotics use. Organic milk carries with it a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Milk; Organic; Quality; Quantile; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/61137 |
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| Ishdorj, Ariun; Jensen, Helen H.; Tobias, Justin. |
| WIC, the Special Supplemental Nutrition Program for Women, Infants, and Children, is a widely studied public food assistance program that aims to provide foods, nutrition education and other services to at-risk, low-income children and pregnant, breastfeeding and postpartum women. From a policy perspective, it is of interest to assess the efficacy of the WIC program - how much, if at all, does the program improve the nutritional outcomes of WIC families? In this paper we address two important issues related to the WIC program that have not been extensively addressed in the past. First, although the WIC program is primarily devised with the intent of improving the nutrition of "target" children and mothers, it is possible that WIC may also change the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Nutrition; WIC; Bayesian econometrics; Treatment-response; Food Consumption/Nutrition/Food Safety. |
| Ano: 2007 |
URL: http://purl.umn.edu/9239 |
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| Batres-Marquez, S. Patricia; Jensen, Helen H.. |
| Evidence from recent U.S. food consumption surveys provides new information on the distribution of rice consumption, the characteristics of rice consumers, and the diets of people who consume rice. Recently available data from nationally representative surveys of food consumed by individuals in the United States allowed comparison of consumption today (2001-02) with consumption in the mid-1990s. Data come from the Continuing Survey of Food Intakes by Individuals (1994-96) and the National Health and Nutrition Examination Survey (2001-02). Rice is consumed by a significant portion of the U.S. adult population. In 2001-02, over 18 percent (18.2 percent) of adults reported eating at least half a serving of white or brown rice in one day of observed intake.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Dietary guidelines; Rice consumption; Food Consumption/Nutrition/Food Safety. |
| Ano: 2005 |
URL: http://purl.umn.edu/18670 |
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| Registros recuperados: 105 | |
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