This pioneer research focused on assessments of the performance of liberal parties as junior partners in coalition governments in Norway, the Netherlands and the United Kingdom. The country surveys are mainly based on extensive interviews conducted in October 2016 by Uwe Johannen, a free lance consultant from Germany, with interlocutors from liberal parties and a few external analysts from think tanks, the media and social sciences. The statements of party interlocutors reflect the internal views of a variety of current or former party leaders, a prime minister and a deputy prime minister, cabinet ministers, coalition negotiators, parliamentarians, cabinet chiefs of staff, party presidents, members of party boards, top advisors, heads of party organizations and press staff, national campaign managers. As additional sources the consultant assessed the respective coalition agreements and annexes, party documents as well as coalition-related articles and comments in the media.