Abstract: A method of controlling negotiations between a first party and a second party with respect to an item listed on an electronic-commerce platform having a restricted market is disclosed. Based on a submission of a received offer amount and a received quantity corresponding to the offer amount, a first round of a predetermined number of rounds of the negotiations is initiated. The first round includes displaying a counteroffer entry region comprising a location for receiving a counteroffer amount and a quantity corresponding to the counteroffer amount from the first party. Based on a submission of the received counteroffer amount and the received quantity corresponding to the counteroffer amount, a current approved price region comprising a location for a current approved price and a current approved quantity is updated. Via optional actions in an action region, the second party is allowed to participate in a second round of the negotiations.

Abstract: A method of vetting a wholesaler of an item for participation in an online marketplace is disclosed. A notification that the wholesaler of the item intends to sell the item on the online marketplace is received. The online marketplace is reserved for wholesaling and the notification includes a price at which the wholesaler intends to sell the item. The price at which the wholesaler intends to sell the item is compared with an average price at which an end consumer may purchase the item on an additional online marketplace. The additional online marketplace is not reserved for wholesaling. A listing is received from a wholesaler of the item on the online marketplace based on the comparison of the price at which the wholesaler intends to sell the item being less than the average price at which the end consumer may purchase the item on the additional online marketplace.