First, we wish to provide scholars with the opportunity to present and wrap up the main results of their work on Europeanization. Second, we wish to invite them to exchange their respective findings, and to engage in a fruitful dialogue regarding which theoretical and empirical lessons can be drawn from the existing literature, and where we should go from there. Third, we wish to give non-Swiss scholars the opportunity to comment on the Swiss literature, to highlight its strengths and weaknesses in a comparative perspective, and to put forward recommendations for the future. To this end, we have asked contributors to this Debate to address the four following questions: 1 How to measure the Europeanization effects on Swiss policy-making and related out- puts 2 Which policy domains and periods are the most Europeanized? 3 What is the extent of direct and indirect Europeanization? 4 Are there other major effects of Europeanization? Not all contributors were able to answer these four questions. However, for the sake of consistency we thought it was worth starting with an ambitious purpose and asking con- tributors to do their best to address the same set of questions. Non-Swiss scholars were then invited to react and to elaborate on the insights provided by the Swiss contributors.