“…Supplier flexibility was operationalized with five items from Wieteska (2020): suppliers are able to respond to volume changes (SF1), suppliers are able to offer small minimum order quantities (SF2), suppliers are able to respond to delivery time changes (SF3), suppliers are able to produce a large volume in a short time (SF4), suppliers are able to respond to changes in type of ordered items (SF5). Procurement flexibility was operationalized with seven items Wieteska (2020): buyer performs multi-sourcing (PF1), time required to obtain additional sources is short (PF2), the cost incurred in switching the purchase of items from one supplier to another is low (PF3), time required in negotiating with new source is short (PF4), buyer uses flexible contracts (PF5), the costs of placing orders are low (PF6), the time of placing orders is short (PF7). Logistics flexibility was operationalized with five items from Wieteska (2020): buyer uses multiple transportation modes (LF1), it is possible to choose a faster mode of transportation in the case of emergency needs (LF2), it is possible to transport small deliveries, with a volume smaller than the load capacity of delivery vehicle/container (LF3), it is possible to mix different products into a delivery load (LF4), and buyer collaborates with logistics providers (LF5).…”