The reform of the Civil Code of the Russian Federation has adapted a number of elements of the Anglo-Saxon system to Russian realities. One of them was the rule about the impossibility to refuse a claim due to the lack of proof of the amount of damages (Art. 393 of the Civil Code), which are to be established by the court on the basis of the principles of justice and proportionality. About the influence of such adaptation on the arbitration process in general in the column of the information-legal portal PRAVO.ru argues Managing Partner of Alliance Legal Consulting Group Evgeny Karnoukhov.