Besides the two annual questions regarding relative market power and responsibity of online platforms we are pleased to offer a varied scientific program at the LIDC Congress in Vienna with numerous panel discussions in the field of antitrust law, intellectual property and fair trade law. The working days on Friday and Saturday morning are accompanied by an attractive evening program, including a flying buffet in the Gloriette of Schönbrunn Palace on Friday evening and a galadinner at the Wiener Konzerthaus (Vienna Concert Hall) with music and dance on Saturday evening.