Cisg exclusion and legal efficiency global trade law series volume 48 series editors ross buckley cifr king wood mallesons professor of international finance and regulation unsw sydney australia andreas ziegler professor faculty of law and criminal sciences university of lausanne lausanne switzerland advisory board kenneth w abbott professor of law and global studies arizona . Global trade law series volume 48 the rationale behind the vienna convention on contracts for the international sale of goods cisg is that a uniform sales law will lead to improved efficiency of cross border sales and promote international trade however although it continues to attract new member states and now applies to more than 80 of global trade commercial parties often exclude the cisg questioning it as a desirable choice of law. Cisg exclusion and legal efficiency global trade law lisa spagnolo on amazoncom free shipping on qualifying offers the rationale behind the vienna convention on contracts for the international sale of goods cisg is that a uniform sales law will lead to improved efficiency of cross border sales and promote international trade. The rationale behind the vienna convention on contracts for the international sale of goods cisg is that a uniform sales law will lead to improved efficiency of cross border sales and promote international trade however although it continues to attract new member states and now applies to more than 80 of global trade commercial parties often exclude the cisg questioning it as a desirable choice of law