System Transition and Structural Change Processes in the Energy Efficiency of Residential Sector: Evidence from EU Countries

This paper aims to analyse the evolution of energy efficiency systems for the residential sector of EU countries over the past twenty years and the associated process of structural change occurred in EU economies. To this purpose, we develop a set of indicators to measure some significant characteristics of the energy efficiency systems and map European countries in terms of four dimensions: energy system, innovation system, policy mix design and export competitiveness. Building on these indicators we develop a cluster analysis identifying non-arbitrary homogeneous country groups according to several characteristics in order to investigate the co-evolution of technological trajectories, energy use performance and structural change in this specific domain. Results suggest the distinction of EU countries into four groups, that are individually and comparatively scrutinized shedding light on how the four dimensions here considered dynamically evolved and interacted within and across countries. Empirical findings reveal that the design of the domestic policy mix may play a key role in shaping technological trajectories and structural change processes that in turns allow an increase in external competitiveness performance. Such positive impact appears to be closely related to the quality and quantity of international relationships with main economic partners.