Pacta sunt servanda – clausula rebus sic stantibus

Legal solutions to changes in the circumstances

Abstract

The study takes stock of those legal solutions that can be applied in the event of changes after the conclusion of the contract, as mentioned by Professor Novotni in his works. Frustration and frustration of purpose result in the termination of the contract, while the judicial modification of the contract aims to maintain it. The general legal principles can also be applied to remedy a subsequent significant change in circumstances existing at the time the contract was concluded.