This book investigates whether national courts could and should import innovative solutions from abroad in the adjudication of complex legal disputes. Special attention is paid to the concept of "e;legally relevant damage"e; and its importance in overcoming the deadlock created by the category of "e;pure economic loss"e; in the Portuguese and German tort law systems. These systems are essentially based on the concept of unlawfulness ("e;Rechtswidrigkeit"e;), which limits the compensation for pure economic loss to where a protective rule is infringed. These losses have nevertheless been compensated for through the extensive interpretation of rules and the appeal to near-contractual devices, which has been detrimental to legal certainty, the equality before the law, and subjects' freedom of action. This book explains why courts can and should take a proactive role and apply DCFR-based solutions in order to compensate for every loss that is worthy of legal protection.