SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Seven systems of Engel curves for expenditures on ten commodity groups were estimated using Taiwanese household expenditure data for the period from 1996 through 1998. Results show that the estimated expenditure elasticities are insensitive to the choice of functional forms.

Demand for Nutrients: The Household Production Approach

Palavras-chave: Engel curve; Taiwan; Consumer/Household Economics.

Ano: 2002

URL: http://purl.umn.edu/53388

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...

The Impacts of Retail Promotions on the Demand for Orange Juice: A Study of a Retail Chain

Palavras-chave: Nutrient; Household production theory; Demand; Demand and Price Analysis.

Ano: 1998

URL: http://purl.umn.edu/52825

Lee, Jonq-Ying; Brown, Mark G.; Knight, Erika P.; Chung, Rebecca H..

This study examined the impacts of retail promotions on the demand for five brands of orange juices for a retail chain (referred to as Retailer X) and its competitors using the Rotterdam model. Results show that the combination of feature ads and displays had the largest impacts on retail revenue among the four promotional tactics considered, while temporary price reductions had no additional advertising impacts other than price impacts on retail revenues. Results also show that when Retailer X promotes an OJ brand using any of the tactics studied, a larger portion of the increased demand for the promoted brand came from reduced demand for other brands of OJ in the same store and a smaller portion came from the decreased demand in competing stores in the...

Canadian import demand for fresh fruits: a differential demand system approach

Palavras-chave: Demand and Price Analysis; Marketing.

Ano: 2008

URL: http://purl.umn.edu/6699

Chung, Rebecca H.; Brown, Mark G.; Lee, Jonq-Ying.

Tipo: Report

Palavras-chave: Import demand; Canada; Fresh fruit; Demand and Price Analysis; International Relations/Trade.

Ano: 1994

URL: http://purl.umn.edu/52740

A Study of the Demand for Medical Services in Taiwan

INCORPORATING NUTRIENTS IN FOOD DEMAND ANALYSIS

This paper presents a version of the household production theory to explain the demand for health. In this study we have explored the factors that influence the demand for medical services and medical expenditures in Taiwan. A negative binomial model was used to study the demand for medical services. We found that the demand for medical services and medical expenditures are related to household composition, household income, family size, occupation of the household head, and living environments. In addition, we found higher usage of medical services on average for those households with medical insurances other than the national health insurance.

Tipo: Working or Discussion Paper

Palavras-chave: Medical service; Demand; Negative binomial model; Count data; Health Economics and Policy.

Ano: 2004

URL: http://purl.umn.edu/53389

Lee, Jonq-Ying; Brown, Mark G.; Chung, Rebecca H.; Chiang, Frank F..

Two levels version of the Rotterdam demand systems were developed using utility theory with additional nutrient variables. Income, price, and nutrient demand elasticities were estimated. Results show that some nutrients are important factors in determining the demand for food items.

Incorporating Nutrients in Food Demand Analysis

Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.

Ano: 1998

URL: http://purl.umn.edu/20960

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.

DEMAND FOR NUTRIENTS: THE HOUSEHOLD PRODUCTION APPROACH

Palavras-chave: Demand and Price Analysis.

Ano: 1998

URL: http://purl.umn.edu/52824

Chung, Rebecca H.; Lee, Jonq-Ying; Moss, Charles B.; Brown, Mark G..

The household production approach is used to characterize the household's preference toward nutrients in food consumption. Elasticities of substitution and Hicksian price elasticities are estimated, price- and expenditure-nutrient elasticities are calculated. Results show that protein is the most expensive nutrient, and that nutrients played an important role in determining households' food consumption.