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DTSTAMP:20260403T185746Z
DESCRIPTION:Nicholas C. Petruzzi\n\nWisconsin School of Business\, Universi
 ty of Wisconsin-Madiso\n\nDiscretionary Sell-by Dates and their Implicatio
 ns for Food Waste and Availability\n\nDate: Friday\, January 23\, 2026\n	Ti
 me: 11:00 AM - 12:00 PM\n	Location: Bronfman Building\, Room 310\n\n\nAbstr
 act\n\nDespite their widespread use\, date labels on food products are lar
 gely unregulated in the United States. As a result\, manufacturers have br
 oad discretion on both the type of label to use\, if any\, and the date to
  affix to the label. One such label\, sell-by dates\, are designed primari
 ly to provide inventory rotation guidance to retailers. This guidance is e
 specially important to retailers that face uncertain demand for a perishab
 le product. But this raises an important question: under what conditions s
 hould manufacturers choose shorter versus longer sell-by dates\, and how d
 o these decisions affect food waste and food availability? To address this
  question\, we analyze a Stackelberg game between one manufacturer and one
  retailer of a perishable product\, where consumer demand for the product 
 is uncertain. The manufacturer leads by setting not only the sell-by date 
 for the product\, but also a credit to reimburse the retailer for each uni
 t of the product that does not sell by the chosen date. The retailer then 
 responds by choosing its base stock level for dynamically replenishing its
  inventory of the product. We show that manufacturers favor shorter sell-b
 y dates if margins are higher\, because higher order volumes outweigh the 
 cost of increased waste\, whereas they favor longer sell-by dates if margi
 ns are lower\, to reduce safety stock costs. As a result\, we also find th
 at that shorter sell-by dates can lead to the triple-negative externality 
 in which product availability for consumers decreases at the same time tha
 t product waste for retailers increases and profit for the supply chain de
 creases. Our findings therefore suggest that manufacturer discretion over 
 date labels can simultaneously result in undesirable economic\, social\, a
 nd environmental outcomes. Policymakers can address this problem by standa
 rdizing date labels to eliminate discretionary labeling practices or by im
 plementing disposal fees as a Pagouvian tax on manufacturers.\n
DTSTART:20260123T160000Z
DTEND:20260123T170000Z
LOCATION:Room 310\, Donald E. Armstrong Building\, CA\, QC\, Montreal\, H3A
  3L1\, 3420 rue McTavish
SUMMARY:Management Science Research Centre (MSRC) Seminar: Nicholas C. Petr
 uzzi
URL:https://www.mcgill.ca/channels/channels/event/management-science-resear
 ch-centre-msrc-seminar-nicholas-c-petruzzi-370423
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