  Assortment planning, an important seasonal activity for any retailer,
involves choosing the right subset of products to stock in each store.While
existing approaches only maximize the expected revenue, we propose including
the environmental impact too, through the Higg Material Sustainability Index.
The trade-off between revenue and environmental impact is balanced through a
multi-objective optimization approach, that yields a Pareto-front of optimal
assortments for merchandisers to choose from. Using the proposed approach on a
few product categories of a leading fashion retailer shows that choosing
assortments with lower environmental impact with a minimal impact on revenue is
possible.
