15,516 research outputs found
ESTIMATING DEMAND FOR CIGARETTES AND ALCOHOL WITH ZERO OBSERVATIONS:
Consumption of cigarettes, beer and wine by individuals is investigated, using a multivariate sample selection model. Empirical results suggest that the proposed model performs better than the restricted specifications. Gender differences are also present.Demand and Price Analysis,
On the Convergence of Lacunary Walsh-Fourier Series
We study the Walsh-Fourier series of S_{n_j}f, along a lacunary subsequence
of integers {n_j}. Under a suitable integrability condition, we show that the
sequence converges to f a.e. Integral condition is only slightly larger than
what the sharp integrability condition would be, by a result of Konyagin. The
condition is: f is in L loglog L (logloglog L). The method of proof uses four
ingredients, (1) analysis on the Walsh Phase Plane, (2) the new multi-frequency
Calderon-Zygmund Decomposition of Nazarov-Oberlin-Thiele, (3) a classical
inequality of Zygmund, giving an improvement in the Hausdorff-Young inequality
for lacunary subsequences of integers, and (4) the extrapolation method of
Carro-Martin, which generalizes the work of Antonov and Arias-de-Reyna.Comment: 18 pages. v2: Several typos corrected. Final version of the paper,
accepted to LM
The Supplemental Nutrition Assistance Program and Nutrient Intakes
The socioeconomic determinants of Food Stamp Program participation and the effects of program participation on nutrient intakes are investigated, using data from the 2003–04 and 2005–06 National Health and Nutrition Examination Survey (NHANES). An endogenous switching regression system of equations is estimated, which includes protein, vitamin A, vitamin C, calcium and iron. Participation in the FSP is found to play an important role in nutrient intakes. Socio-demographic variables such as income, household size and presence of children are also found to affect individuals’ decisions on program participation and nutrient intakes.Food Consumption/Nutrition/Food Safety, Food Security and Poverty,
A SAMPLE SELECTION APPROACH TO CENSORED DEMAND SYSTEMS
A censored demand system estimator is proposed by extending the sample selection model of Heckman. Censoring is governed by a selection mechanism which avoids the restricitve Tobit parameterization. Results of application to household consumption of beverages suggest the estimator produces slightly different elasticity estimates from the Tobit estimator. Demands for beverages are nearly unitary elastic, and net substitution is an obvious pattern.beverages, censoring, sample selection, Translog demand system, Demand and Price Analysis,
ESTIMATION OF A DEMAND SYSTEM WITH LIMITED DEPENDENT VARIABLES
The study employs the full-information maximum-likelihood method to estimate a censored translog demand system. U.S. household consumption of steak, roast, and ground beef are used to demonstrate the application of the estimation procedure. The proposed methodology produces more efficient estimates than the popular two-step procedures found in demand literature.Demand and Price Analysis,
Fruit and vegetable consumption in Malaysia: a count system approach
Food Consumption/Nutrition/Food Safety,
HOUSEHOLD DEMAND FOR FINFISH: A GENERALIZED DOUBLE-HURDLE MODEL
This study estimates household demand for finfish in the United States using a limited dependent variable model that accounts for both participation and consumption decisions and also accommodates nonnormal heteroskedastic errors. Results suggest that own-price elasticity is near unitary and income elasticity is small. Price of finfish, shopping frequency, Northeast, Black and other non-Whites, and the life-cycle variable “"young, single, no children”" are they key factors that affect significantly both the probability of participation and the level of finfish consumption. Furthermore, a variable may exert opposite effects on the probability and level of consumption.Consumer/Household Economics, Demand and Price Analysis,
CROSS-SECTIONAL ESTIMATION OF U.S. DEMAND FOR BEEF PRODUCTS: A CENSORED SYSTEM APPROACH
Demands for beef products are investigated using the U.S. Department of AgricultureÂ’'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.Demand and Price Analysis,
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