ABSTRACT

Art. 55 CISG embodies the subsidiary rule that, where a determined or determinable purchase price of the goods is lacking, the purchase price is deemed to be the market price at the time of the conclusion of the contract. Right from the very beginning of the unification process in sales law, the issue of undetermined purchase price was highly disputed. There are disparities in the various legal systems: whereas some strongly require an at least determinable market price, others are less strict. A very flexible solution embodied in Art. 57 ULIS, according to which the buyer, in the absence an agreement on the price, had to pay the price that the seller usually charged at the time of the conclusion of the contract, was modified at the Drafting Conference to the CISG. Contrary to ULIS, Art. 14 CISG requires an express or, at least, implicit provision of the purchase price (see sub Article 14 CISG).