The European Commission’s Regional Aid Guidelines define the criteria applied by the European Commission when examining the compatibility of regional aid granted by Member State public authorities within the European internal market. In order to prepare for a review of the RAG 2007-2013, DG Competition of the European Commission commissioned Ramboll Management Consulting to evaluate current implementationand impact. Objectives of the study. This ex-post evaluation has the following core objectives: 1. Identify the determinants of investment or location decisions of the firm in question, including the incentive effect of regional aid in these decisions; 2. Assess the consequences of the investments in terms of regional and employment benefits and externalities; 3. Analyse the distortive effects of aid for competitors and/or other regions.