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WIC AND THE NUTRIENT INTAKE OF CHILDREN AgEcon
Oliveira, Victor; Gundersen, Craig.
After controlling for self-selection bias, participation in the WIC program (Special Supplemental Nutrition Program for Women, Infants, and Children) has a significant positive effect on children's intakes of iron, folate, and vitamin B-6. Iron is one of the five nutrients targeted by the program, the others being protein, calcium, vitamin A, and vitamin C. Folate and vitamin B-6, along with zinc, were recommended by a 1991 USDA study as nutrients that the program should also target. The data set used, the 1994-96 Continuing Survey of Food Intake by Individuals, reflects the dramatic increase during the 1990's in the number of children in the program.
Tipo: Report Palavras-chave: WIC; Nutrient intake; Self-selection bias; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 2000 URL: http://purl.umn.edu/33803
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INFORMATION AND THE ADOPTION OF PRECISION FARMING TECHNOLOGIES AgEcon
McBride, William D.; Daberkow, Stan G..
Precision farming technologies have been commercially available since the early 1990s, but the pace of adoption among U.S. farmers has been modest. This study examines the relationship between the adoption of diagnostic and application techniques of precision farming and sources of information available to farmers about precision farming. The model used in the analysis accounts for sources of self-selection in the adoption process that could bias the results. Results indicate interpersonal information sources have increased adoption relative to information from the mass media, and the private sector has been the driving force behind the diffusion of precision farming. Information from crop consultants and input suppliers has had the greatest impact on the...
Tipo: Journal Article Palavras-chave: Information sources; Logit analysis; Precision farming; Self-selection bias; Technology adoption; Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003 URL: http://purl.umn.edu/14671
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