BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20251005T062439EDT-2410tk1r71@132.216.98.100 DTSTAMP:20251005T102439Z DESCRIPTION:\n\nJean-Sébastien Matte\, a doctoral student at 9IÖÆ×÷³§Ãâ·Ñ Univers ity in the Operations Management area will be presenting his thesis defens e entitled:\n\nECOWISR\n\n(Excessive Consumption\, Overproduction\, and Wa ste: Impact Solutions through Reduction): The case of the fast fashion ind ustry \n\nThursday\, May 29\, 2025\, at 10:00 a.m. \n (The defense will be conducted in hybrid mode)\n\nStudent Committee Co-chairs: Professor Mehmet Gumus\n\nPlease note that the Defence will be conducted in hybrid mode. I f you wish to participate\, please contact the PhD office and we will prov ide you with the defence details.\n\n\nAbstract\n\nThe fashion industry fa ces environmental challenges\, including overproduction\, waste\, and impa ctful production processes. This thesis examines how a deeper understandin g of consumer behaviour can help retailers develop more attractive assortm ents and adopt sustainable practices. By studying and integrating richer b ehavioural models to assortment decision\, this thesis provides data-drive n insights to reduce waste and environmental impacts\, as well as targeted policy recommendations that promote sustainability and collaborative acti on across the industry. In the first manuscript\, in collaboration with a large European fast fashion retailer\, we examine how assortment variety a ffects customer choices. Using a large clickstream dataset\, we model asso rtment variety as a bipartite graph along three main dimensions: styles\, colours\, and graph density. Using a richer choice model\, we identify thr ee main customer segments with varying preferences for economic and variet y variables. Our findings emphasize the need for retailers to balance offe ring a wide variety with efficient management and accounting for heterogen eity in customer preferences. The second manuscript addresses confusion an d the lack of regulation around environmental impact in the fashion indust ry. By combining experimental choice data to measure preferences to a prod uct line and pricing optimization model\, and counterfactual simulation\, it studies how a retailer can design and price a product line that balance s profitability and environmental impact. We find that Price is the primar y driver of consumer choice with limited sensitivity to environmental attr ibutes. However\, our counterfactual simulation shows that increased consu mer awareness on environmental attributes can raise the importance and wil lingness-to-pay for environmental attributes\, reducing the profitability- environmental trade-off. Our findings suggest that gradual policies are ne eded to bridge the gap between consumer intentions and behaviour\, and sup port retailer’s shift toward more sustainable practices.\n DTSTART:20250529T140000Z DTEND:20250529T160000Z SUMMARY:PhD Thesis Defense Presentation: Jean-Sebastien Matte URL:/desautels/channels/event/phd-thesis-defense-prese ntation-jean-sebastien-matte-365485 END:VEVENT END:VCALENDAR