For international and global trade, Unger calls for the need to experiment with different property rights regimes, where multiple forms will coexist in the same market system and not be tied to individual property rights and contractual labor.
针对国际和全球贸易，昂格尔主张有必要实施不同的财产权体制的实验，在这种实验中，多重形式将共存于同一个市场体系中，而不必紧系于个人财产权及契约劳动。