ABSTRACT
This chapter establishes the theoretical and methodological framework for analysing energy policy through the lens of Historical Institutionalism (HI). Following a discussion of core theoretical assumptions, the chapter sets out four hypotheses based on the theory and creates a model conceptualising the independent (IV) and the dependent (DV) variables. The model defines two IVs, and their relationship leads to variation in the DV: the level of institutional stickiness and whether a critical juncture occurs or not. Furthermore, a framework for measuring policy integration (the DV) is provided based on the analytical units of intended goals, policy output, and policy outcome, and how path dependence, involving positive feedback processes and increasing returns, can be operationalised. Subsequently, the chapter expounds on the research design and the methods applied, selecting four cases to test the hypotheses: the timeframe between the 1950s and 1970s, the Single European Act (SEA), the Three Energy Packages, and the Lisbon Treaty and beyond.
