This dissertation proposes a multi-level explanatory framework that strengthens explanations of variation in European Union member states’ compliance with the Anti-Discrimination Directives, and offers novel approaches to testing relationships between key constructs situated at multiple levels of analysis. The framework entails three different yet inter-related levels: system structure, organizational design of public agencies, and the attitudinal and behavioral attributes of civil servants. The theoretical model, proposed in this dissertation, conceptualizes compliance from an integrative approach, and also enables more accurate explanations of the role of information in modifying compliance behavior. This dissertation relies on a multi-method empirical approach, and a combination of secondary and primary sources (i.e. surveys, interviews, observations, and primary documents) to provide answers to the research questions raised in this dissertation.