Abstract: Disclosed are systems, methods and devices, including a method that includes receiving information about one or more transactions, each transaction including a respective sale of at least one first item selected by a customer and an offer of cross-sale of at least one second item offered to the customer, the information about each of the transactions including information about an outcome of the respective offer of cross-sales. The method further includes determining effectiveness measures based on the received information, with each of the effectiveness measures being associated with at least one of a plurality of combinations of at least one purchasable item and a corresponding offer of cross-sale of at least another purchasable item. The effectiveness measures are representative of a likelihood of the corresponding offer of the cross-sale being accepted when offered in combination with the respective at least one purchasable item.