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| Registros recuperados: 97 | |
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| Brown, Mark G.; Lee, Jonq-Ying. |
| This paper examines several approaches to introduce advertising in systems of demand equations. Advertising is included in the Rotterdam model using an unrestricted specification and three restricted specifications - advertising affects demand alternatively through (1) marginal utilities as in studies by Duffy (1987, 1989, 1990) and Selvanathan (1989), (2) scaling parameters which can be viewed as indicators of product quality, and (3) translation parameters which can be viewed as indicators of basic needs. A test to choose among the alternative specifications is provided and the methodology is applied to data on demand for fruit juice products. |
| Tipo: Report |
Palavras-chave: Advertising; Rotterdam model; Scaling; Translation; Demand and Price Analysis. |
| Ano: 1991 |
URL: http://purl.umn.edu/52717 |
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| Brown, Mark G.; Behr, Robert M.; Lee, Jonq-Ying. |
| The question of endogeneity of conditional expenditures, as well as prices, in conditional demand equations for justices is examined. Both conditional expenditures and prices were found to be uncorrelated with the conditional demand errors, based on Wu-Hausman tests. Conditional demand error variance/covariance estimates and corresponding Slutsky coefficient estimates were approximately proportional, as predicted by the theory of rational random behavior, further supporting independence of conditional expenditures and conditional errors for juice demands. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1994 |
URL: http://purl.umn.edu/31231 |
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| Chung, Rebecca H.; Lee, Jonq-Ying; Brown, Mark G.. |
| This study explored the roles of nutrients in the demand for food through utility theory. The findings support the argument that nutrients play important roles in the demand for food. The 1987-88 Nationwide Food Consumption Survey data were used. The impacts of six nutrients (carbohydrates, fats, vitamins, minerals, digestible fibers, and proteins) on the demand for five food groups (dairy, meats, vegetables and fruits, grain products, and other foods) were studied using the Rotterdam demand system. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1998 |
URL: http://purl.umn.edu/52824 |
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| Brown, Mark G.; Lee, Jonq-Ying. |
| This study incorporates quality into the Rotterdam demand system based on utility theory. Quality was modeled through its impact on marginal utility via perceived prices, following theoretical work by Basemann and Barten, among others. Results show that the price elasticity of fresh grapefruit demand is near unitary at the retail level and juice content has had relatively large impacts on fresh grapefruit demand. |
| Tipo: Report |
Palavras-chave: Agribusiness; Demand and Price Analysis. |
| Ano: 1998 |
URL: http://purl.umn.edu/52821 |
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| Lee, Jonq-Ying. |
| In this study, both the Rotterdam model and the double logarithmic model were used to estimate the demand parameters for fruit beverages. The results show that: (1) under the conditions of block-independence and predetermined price changes, the Slutsky matrix for fruit beverages is symmetric and negative definite; (2) own-price elasticity estimates from both models are about the same; and (3) income elasticity estimates and cross-product relationships from the two models are not compatible. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1984 |
URL: http://purl.umn.edu/29725 |
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| Lee, Jonq-Ying; Brown, Mark G.. |
| In this study, we examine the impacts of retail promotions and flu/cold incidences on the demand for orange juice using weekly Nielsen grocery orange juice sales statistics and the flu/cold incidences reported by Surveillance Data Inc. The cross-section time-series pooling technique proposed by Parks was used to estimate the demand parameters. Results show that flu/cold incidences increased the effectiveness of retail promotions on the demand for orange juice. |
| Tipo: Journal Article |
Palavras-chave: Retail promotion; Flu; Cold; Orange juice; Demand; Marketing. |
| Ano: 2009 |
URL: http://purl.umn.edu/59242 |
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| Lee, Jonq-Ying. |
| Baseline estimates are generated using the Box-Jenkins time series expectation of non-promoted volume calculated at the store/week/UPC level. The expectation of sales is a weighted moving average of weekly observations of normal non-promoted volume. The relationship between baseline volume and promotional activities was examined using the ordinary least squares method in this analysis. |
| Tipo: Report |
Palavras-chave: Baseline; Orange juice; Nielsen; Agribusiness. |
| Ano: 2006 |
URL: http://purl.umn.edu/36833 |
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| Chung, Rebecca H.; Lee, Jonq-Ying; Brown, Mark G.. |
| This study uses the household production theory to study the demand for nutrients, i.e., households purchase a combination of food items from the market and produce the needed nutrients from these food items. By following the traditional household production approach, shadow prices for nutrients in food consumption are calculated. The cost function that generates the shadow prices appears plausible in terms of its elasticities of substitution and factor demand. After obtaining the calculated shadow prices of nutrients, the nutrient demand functions are estimated. Results show that the own-price elasticity of demand for nutrient is inelastic, whereas the expenditure elasticities indicate that nutrients are normal goods. Crossprice elasticities show that... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nutrient; Household production theory; Demand; Demand and Price Analysis. |
| Ano: 1998 |
URL: http://purl.umn.edu/52825 |
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| Kim, Hyeyoung; Ward, Ronald W.; Lee, Jonq-Ying. |
| Florida’s citrus industry has a long history of using generic advertising as a primary instrument for shifting demand for various forms of citrus juices. Consumption behavior and consumer responses to these advertising are expected to substantially differ with each type of citrus juice These juices are classified into several groups defined as: frozen concentrated orange juice (FCOJ); refrigerated ready to- service not form concentrate (NFC); and refrigerated ready-to-service from concentrated orange juice (RECON). RECON comes from the fact that bulk concentrate has to be reconstituted into the ready-to-service form. While these juices may be substitutable, they fundamentally differ in both form and perception about the product attributes. Furthermore,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Demand and Price Analysis; Marketing. |
| Ano: 2008 |
URL: http://purl.umn.edu/6070 |
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| Lee, Jonq-Ying. |
| Tropicana introduced a new package design as part of its advertising and branding campaign, with the theme “Squeeze it’s a Natural in January 2009. Sales of the Tropicana Pure Premium line plummeted 20% between the January and February from the same period a year ago. Tropicana had changed its mind and went back to the earlier packaging at the end of February. This study examined the impact of Tropicana’s package redesign on the sales of Tropicana orange juice and on the sales of all orange juice. Study results show that the package redesign cost Tropicana an estimated $27 million. |
| Tipo: Report |
Palavras-chave: Agribusiness. |
| Ano: 2009 |
URL: http://purl.umn.edu/104330 |
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| Registros recuperados: 97 | |
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