Notes On Fruit And Vegetable Purchase Data Obtained

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Cheyenne Smith Fall Midterm A. 1. Who were the study participants and how was fruit and vegetable purchase data obtained? Participants in the study were low-income families that participate in WIC. Families using WIC shopped at grocery chain stores in Connecticut or Massachusetts in January 2009-September 2010. 2. Summarize the major changes detected in food purchasing patterns during the study period. On average, a household spent $235 a month for groceries in 2009. Within this amount, 4.6% of their spending was on fruits. In 2010, the average spent monthly on groceries was $219. Within this amount, 6.2% of their spending was on fruits. Although families were spending less on groceries, they were still getting some fruits within their budget. Vegetable spending grew in total from 5.4% to 6.3%. In both 2009 and 2010, the most purchased vegetables were fresh and canned types (e.g. ketchup and pickles). 60% of vegetable purchases were fresh vegetables. According to Table 1, other vegetables (e.g. celery, mushrooms and olives) accounted for 40% of all purchased vegetables in 2009 for WIC households based on cup-equivalent servings. There was a similar expenditure in 2010 of vegetable purchases among WIC participants. Before WIC’s revisions, WIC had a very limited set of vegetables available. 3. Explain the substitution effects observed. Why is including analysis of substitution effects important for researching an incentive program? Substitution effects were: WIC households
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