PROBLEM TO BE SOLVED : To promptly and efficiently perform matching between a real-estate property for sale and an estate purchase desirer.SOLUTION : A real estate broker 12 offers a property. A desirer extraction section 105 extracts customers who desire the offered property. A price range check section 108 checks a price range with a predetermined or more number of customers, and decides tendency of the distribution of desired prices. When desired prices are concentrated on a particular price, the number of parcels is determined from the number of extracted customers and minimum parcel area. A parcel pattern selecting section 107 selects a parcel pattern based on the pattern selection reference information. A parcel/price determining section 109 determines a parcel pattern and price based on the parcel pattern information, customer information and pattern selection reference information. When desired prices are not concentrated on a particular price, the number of parcels is determined from the number of extracted customers.COPYRIGHT : (C)2008, JPO&INPIT