The invention relates to a computer-implemented data processing system which comprises a database, an offering module comprising an offering user interface for a pawner to enter an indication of an item to be pawned into the database, a bidding module comprising a bidding user interface for at least one bidder to enter at least one bid into the database, a selection module for selecting one of the at least one bid as a winning bid and the bidder of the winning bid as a pawnee, a release declaration module for declaring a release of the item if the release declaration module receives a release remark, and a release notification module for notifying the pawnee that the item was released if the release declaration module declares a release of the item.