The YES! 2017, for the first time, took place in two different regions. While the YES! started in 2015 with teams from the North, in its third rendition, the competition included the region South-West. With the ZEW Centre for European Economic Research as the regional partner, the first of two regional finales took place in Mannheim. The second final was held in Kiel at the ZBW. The final in Kiel in September was bigger than ever, with 14 teams presenting their solutions on two days, accompanied by national and international speakers who discussed the solutions in every detail.