Master's Thesis from the year 2019 in the subject Business economics - Miscellaneous, grade: 8,5, University of Pompeu Fabra, language: English, abstract: It is questionable whether smart contracts might be a suitable solution for convoluted transactions like multi-party transactions or transaction where the respective execution relies on external input. To answer this question, this thesis firstly tries to explain the core functioning of blockchain and smart contracts. Subsequently it will assess whether smart contracts are currently ready to carry out complex transactions and if not, review and develop solutions for the prevailing challenges. In this context, it will analyze the possibilities as well as the legal and technical boundaries of smart contracts.