Patent ID: 8595073

Claim:
A computer, comprising: a processor, wherein the processor is configured with processor-executable instructions to perform operations comprising: the processor receiving a first lowest price for a product and a store price for the product from a first retailer; the processor defining a seeding store price based upon the store price from the first retailer; the processor receiving a second lowest price for the product as offered from each of a plurality of second retailers; the processor defining a bid increment; the processor determining a first offer in which (i) the first retailer presents the seeding store price as an offer and (ii) each of the participating second retailers subtract associated consumer costs and the bid increment from the seeding store price to determine an offer for each of the participating second retailers; the processor determining a subsequent offer, comprising: (a) preventing the first or participating second retailers from participating further if the first offer is below or equal to the first or second lowest price as defined by each of the first and participating second retailers respectively; and (b) recalculating the offer for each of the remaining first or participating second retailers as remaining after (a) by subtracting the bid increment from the remaining first or participating second retailers' previously calculated offers.