open price; discretionary price
A pricing system where the manufacturer does not set a fixed retail price, allowing each retailer to decide the selling price. Often contrasted with 定価 (list price). The term is wasei-eigo; the English equivalent is 'open price' or 'discretionary pricing'.
wasei-eigo (Japanese-coined English), from open price
See also: オープン価格 (オープンかかく)
This product is open-priced, so the price varies from store to store.
More manufacturers are adopting an open pricing system.