INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To achieve simplification of finding, from a reference list, transaction articles for which a user would like information.SOLUTION: An information processing device is equipped with: specification means that specifies interests of a user on the basis of a history, stored in history storage means, of actions of the user with respect to transaction articles; selection means that selects, from among transaction articles registered in a reference list that retains references to transaction article information pertaining to the transaction articles, transaction articles pertaining to the interests specified by the specification means; and control means that displays the reference list such that a manner of display for information showing transaction articles selected by the selection means is more visible than a manner of display for information showing transaction articles not selected by the selection means.