Shelf space is a limited and very expensive resource as a lot of products are presented in a retail store. Shelf space is used in retail enterprise for multiple purposes e.g. allocation of products, ensuring brand visibility, improving customers satisfaction etc. This paper proposed two new practical shelf space allocation models which may be used in retail enterprise helping the retailer to increase gained profit. Both models enrich basic shelf space allocation problem with complicated

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... ising rules such as allocation of product on different vertical levels according their price subcategories (1st model) and allocation of products in different shelf segments based on the products types, brand, weight, and package (2nd model).