Having information is key for most political decisions – both for decision-makers and societal actors. This is especially crucial in democratic countries where external stakeholders are invited to participate in decision-making pro- cesses. Assuming that every actor that gets involved in decision-making processes has a particular lobbying goal, there is a heterogeneous set of actors competing against each other to provide information to the decision-makers. This competition leads some stakeholders to be more successful in achieving their goals than others. Frames, and the framing of information, play an important role in such lobbying success. In this book, Daniel Rasch questions whether and, if so, how, information impacts lobbying success and shows how various actors perform in three instances of European decision-making. He does so by combining findings from a qualitative content analysis with the results of a cross-case analysis using the quantified qualitative data. The new dataset contains a representative sample of over 200 position papers from EU level and national consultations, press releases and evidence from national stakeholders in Germany, Sweden and the United Kingdom. Lobbying Success in the European Union effectively bridges research on interest mediation and framing studies, and offers a new model for measuring stakeholders’ success. This new and pragmatic approach to study lobbying success using a traceable and easy to use instrument can be adapted to any policy analysis and any issue.