Is the consumer directive advantageous for the consumers?

According to the EU Consumer Protection Directive a purchaser has the right to ask for either repair or replacement of a defect product, whereas before in some member countries only one of these remedies were available. It seems to be taken for granted in the Directive and in Green Papers that such a reform is an advantage to the consumers. An analysis of a case at the Supreme Court of Norway demonstrates that the opposite might be true. It will be argued that both purchasers and vendors will be better off if the Directive is interpreted in accordance with economic theory. Harmonization of consumer protection across EU countries might be counterproductive. The analysis is of general interest in the sense that it demonstrates that mandatory changes in rights and obligations among contracting parties may have distributive effects different from what is commonly assumed.