New trends in modern European and comparative contract law. The group has been developing various projects for years and publishing results in the area of contract law, mass contracting, digital contracting and contractual liability. In this area, the group has recently executed the R + D + i Project "Contracts in collaborative economy online platforms" and is currently developing another that deals with the digital market, one of whose cornerstones is the electronic (digital) contracting of goods and digital content and services.