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| Registros recuperados: 31 | |
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| Carlson, Andrea; Dong, Diansheng; Lino, Mark. |
| There is a common perception that healthy food costs more than less healthy food. In this study we use a demand model for diet quality, rather than the quantity of food. Since in our data, total daily cost and diet quality are both calculated from the foods chosen, we account for the fact that cost is endogenous. We find that while total daily food cost is statistically significant in relation to diet quality, the degree of association is very small. Hence, it does not appear that cost alone prevents individuals in the United States from purchasing a healthy diet. Other factors such as food culture and environment, health behaviours, and demographics are more important. Our findings suggest that the choice to consume a healthy diet is very complicated. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Diet cost; Cost of food; Food culture; Diet quality; HEI-2005; Random effects model; Demand model; NHANES; MPED; CNPP Food Prices Database; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; D12; C3. |
| Ano: 2010 |
URL: http://purl.umn.edu/116395 |
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| Dong, Diansheng; Kaiser, Harry M.. |
| By endogenizing unit value and coupon redemption, we estimate U.S. household cheese purchase, quality choice, and coupon redemption equations simultaneously. Zero purchases and missing values are taken into account in the model to correct for the selectivity bias. The correlations among the three equations are found to be significant. Empirical findings show that high quality choice significantly decreases cheese purchases, while cheese coupon usage significantly increases purchases. We find that higher income households select higher quality cheese, while larger households choose lower quality cheese. Frequent coupon redeemers are found to purchase lower quality cheese. For coupon redemption, we find that African American households redeem less while... |
| Tipo: Technical Report |
Palavras-chave: Consumer/Household Economics; Marketing. |
| Ano: 2003 |
URL: http://purl.umn.edu/122111 |
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| Dong, Diansheng; Kaiser, Harry M.; Myrland, Oystein. |
| In this study, we develop and estimate a censored LA/AIDS model using household-level purchase data. In addition to imposing non-negativitity constraints, we account for the endogeneity of unit value. We address the non-negativity issue using an Amemiya-Tobin approach, which imposes the adding-up condition on both observed and latent shares. We address the endogeneity of unit value by estimating share equations and unit value equations simultaneously. Given the need to evaluate high-order probability integrals, we use a simulated probability method in the model estimation. This model is applied to estimate and analyze a demand system featuring six fish and three meat commodities, using Norwegian household data. |
| Tipo: Technical Report |
Palavras-chave: Demand and Price Analysis; Research Methods/ Statistical Methods; C34; D12.. |
| Ano: 2003 |
URL: http://purl.umn.edu/122119 |
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| Dong, Diansheng; Stewart, Hayden. |
| A household’s purchase pattern for food can be described along three dimensions: how much food is bought, what types of food are bought, and how often food is bought. We have proposed a model in which these three facets of purchase behavior are simultaneously determined. Among other things, our model allows us to ask whether a household’s frequency of purchase influences how much food is bought on any shopping occasion. This was not possible with past studies. We find that, in fact, the more time has elapsed between purchases, the greater the quantity of product a household will buy on its next shopping occasion. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety. |
| Ano: 2008 |
URL: http://purl.umn.edu/6428 |
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| Gould, Brian W.; Lee, Yoonjung; Dong, Diansheng; Villarreal, Hector J.. |
| The proposed paper adopts the censored demand system approach of Lee and Pitt (1986) to examine the structure of Mexican food demand. This approach uses the concept of virtual prices to explain specific purchase patterns. The contribution of our selected paper is the incorporation of the endogenous equivalence scale function proposed by Phlipps (1998) within this censored system. The contribution of this analysis is not only in terms of the use of an endogenous scaling function within a censored demand system, but we also will be use simulated maximum likelihood techniques which allows for the specification and estimation of significantly larger sized demand systems without the imposition of restrictive distributional assumptions on the equation error... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2002 |
URL: http://purl.umn.edu/19722 |
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| Schmit, Todd M.; Dong, Diansheng; Chung, Chanjin; Kaiser, Harry M.; Gould, Brian W.. |
| A two-step model with sample selection is applied to panel data of U.S. households to estimate at-home demand for fluid milk and cheese, incorporating advertising expenditures. The model consistently accounts for sample-selection bias, unobserved household heterogeneity, and temporal correlation. Generic advertising programs for fluid milk and cheese were effective at increasing conditional purchase quantities, with very little effect on the probability of purchase. In contrast to aggregate studies, the long-run generic advertising elasticities for cheese were larger than for those of fluid milk. Advertising response varied considerably across sub-product classes, while branded advertising expenditures were largely insignificant. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis; Marketing. |
| Ano: 2002 |
URL: http://purl.umn.edu/31088 |
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| Schmit, Todd M.; Chung, Chanjin; Dong, Diansheng; Kaiser, Harry M.; Gould, Brian W.. |
| A two-step sample selection model is used to estimate household demand equations for fluid milk and cheese products incorporating national generic advertising. This approach allows us to disentangle the incidence of the advertising effect on the probability of purchase and changes in the level of consumption. Generic advertising for fluid milk had a predominantly intensive effect on athome fluid milk demand, implying that advertising was relatively more effective at increasing the consumption of current consumers. Conversely, the at-home cheese demand response to generic cheese advertising was almost exclusively extensive, with virtually the entire increase in quantity demanded due to an increase in the household’s probability of purchase. |
| Tipo: Working Paper |
Palavras-chave: Consumer/Household Economics; Marketing. |
| Ano: 2001 |
URL: http://purl.umn.edu/122642 |
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| Dong, Diansheng; Kaiser, Harry M.. |
| In this study, a market segmentation approach is developed and applied to analyze U.S. household cheese purchases. The segmentation is based on household interpurchase time or the hazard rate of purchases. The hazard rate for a household belonging to a given segment is a function of household demographic and marketing-mix variables, and its baseline is assumed to follow a Weibull distribution. The model is flexible and is able to yield increasing, decreasing, or constant hazard rate functions. Four segments have been discovered in the U.S. household cheese purchase market. Two of the segments contain about 40% of the cheese purchase households, which are frequent buyers with an average interpurchase time of 2 weeks. These frequent cheese purchase... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics. |
| Ano: 2006 |
URL: http://purl.umn.edu/21314 |
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| Kaiser, Harry M.; Dong, Diansheng. |
| While per capita fluid milk consumption has been declining for decades in the United States, generic fluid milk marketing activities sponsored by fluid milk processors and dairy farmers have helped mitigate some of this decline. We estimate that these marketing efforts have had a positive and statistically significant impact on per capita fluid milk consumption. Specifically, over the 11-year period 1995 through 2005, we estimate that a one-percent increase in generic fluid milk marketing expenditures resulted in a 0.051 percent increase in per capita fluid milk consumption when holding all other demand factors constant. What about the impact on total consumption of fluid milk? From 2001 through 2005, generic fluid milk marketing activities increased fluid... |
| Tipo: Technical Report |
Palavras-chave: Livestock Production/Industries; Marketing. |
| Ano: 2006 |
URL: http://purl.umn.edu/121581 |
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| Dong, Diansheng; Schmit, Todd M.; Kaiser, Harry M.. |
| A fixed-effects panel data demand model for five New York State markets is estimated to determine the differential impacts of generic fluid milk advertising by media type. Empirical results indicate that among the four media outlets, television advertising has the largest impact on per capita demand, followed by radio, outdoor, and print. Based on the estimated media-specific elasticities, media reallocation of advertising expenditures suggests that milk sales could increase significantly. The results indicate that cooperative media plan strategies developed between the New York regional advertising program and the national advertising programs would achieve the greatest benefits. |
| Tipo: Journal Article |
Palavras-chave: Generic advertising; Milk; Optimal media allocation; Panel data; Marketing. |
| Ano: 2007 |
URL: http://purl.umn.edu/44701 |
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| Registros recuperados: 31 | |
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