Abstract: A commercial transaction management device includes a coupon creation control unit that receives a coupon issuance request containing sales terms when purchasing a plurality of items together from one user, a determination unit that determines whether to accept the sales terms based on information from a shop related to the items, and an issuance unit that issues an electronic coupon when it is determined to accept the sales terms. This enables an offer of a coupon that matches a desire of one user. In addition, the commercial transaction management device further includes a purchase receiving unit that receives a purchase order of a plurality of items with the sales terms from another user having received an offer of the coupon from one user, and therefore other users can also purchase a plurality of items with the sales terms contained in the coupon.

Abstract: A distribution unit (101) distributes to a customer a coupon for which a valid term is set. Upon receipt of an inquiry about the valid term set for the coupon from the customer to whom the coupon was distributed, an extension unit (102) acquires the valid term set for the coupon from a distributed coupon DB (122). Then, if the acquired valid term has elapsed, the extension unit (102) extends the valid term set for the coupon. In addition, the extension unit (102) determines the period of the extension based on at least a total number or total value of coupons which were distributed to other customers and for which valid terms that have not yet elapsed were set. A reply unit (103) replies to the inquiry with the valid term set for the coupon.

Abstract: An information processing device according to one embodiment includes a monitoring unit and a providing unit. The monitoring unit detects that a user operates a link to a page of a second shop different from a first shop and accesses to the page of the second shop and then identifies the first shop. The link is on a page of the first shop provided through a network. The link contains information for identifying the first shop and information for identifying the second shop. The providing unit provides the user with information related to a benefit available in the first shop.

Abstract: A commercial transaction management device includes a coupon creation control unit that receives a coupon issuance request containing sales terms when purchasing a plurality of items together from one user, a determination unit that determines whether to accept the sales terms based on information from a shop related to the items, and an issuance unit that issues an electronic coupon when it is determined to accept the sales terms. This enables an offer of a coupon that matches a desire of one user. In addition, the commercial transaction management device further includes a purchase receiving unit that receives a purchase order of a plurality of items with the sales terms from another user having received an offer of the coupon from one user, and therefore other users can also purchase a plurality of items with the sales terms contained in the coupon.