期刊
FOOD POLICY
卷 98, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodpol.2020.101879
关键词
Sell-by dates; Food waste; Milk consumption
资金
- USDA-NIFA-AFRI Exploratory Program from the U.S. Department of Agriculture [2017-67030-26611]
This article constructs a theoretical model of rational food waste and empirically examines the impact of extending a food product's sell-by date on household purchase volume and food waste. The results show that the new policy reduces purchase volume by approximately 10% while increasing actual consumption of milk, leading to a reduction in food waste by more than 10%. This consumer welfare-improving pattern is proven to be applicable to all types of perishable food with price-inelastic demand.
This article constructs a theoretical model of rational food waste and analyzes how an extension of a food product's sell-by date affects households' decisions of purchase volume and food waste. We then use the elimination of New York City's regulation of sell-by dates for pasteurized milk products as an empirical case and examine whether the city's new policy effectively reduces food waste and improves consumer welfare. Our results suggest that the new policy reduces purchase volume by about 10%. Both theoretically and empirically, we show that while the observed quantity declines, the actual consumption of milk increases, implying a reduction in food waste by more than 10%. Furthermore, we prove that this consumer welfare-improving pattern is generalizable to all types of perishable food with price-inelastic demand.
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