Criterion for Assessment of Damages Caused by Breach of Contractual Obligation in Legal Systems and International Documents; Guidelines for Iranian Law United Kingdom, Germany, European Principles, Unidroit Principles and CISG

Legal systems and International documents to ensure the rights of persons in contractual relations have paid attention to various sanctions and have accepted the compensation method as one of the most important sanctions ; therefore, there is no doubt that damages in legal systems and international documents are compensable. However, when the damage is subject to the judgment, the criterion of Assessment of damages becomes important; because the lack of criteria for Assessment of damage leads to inefficiency of the sanction. Accordingly, in legal systems and particularly international documents, have been attempted to provide criteria for assessing damages. Regarding the weakness and ambiguity of the Iranian legal system on damages, the results of this study can be useful for lawyers and judges and on the other hand, it can be useful for the legislator to inspire the criteria provided in order Regulations.