Despite the success of the EU's Single Market, barriers to cross-border trade remain. Many of these result from divergent sales laws between the 27 Member States. They make selling abroad complicated and costly, especially for small firms. Traders who are dissuaded from cross-border transactions due to contract law obstacles forgo at least €26 billion in intra-EU trade every year. Meanwhile, 500 million consumers in Europe lose out on greater choice and lower prices because fewer firms make cross-border offers, particularly in smaller national markets.