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In this dissertation, I present five articles regarding two relevant discussions within the field of energy economics: First, three papers discuss the German energy transition and in particular the increasing shares of renewable energies, its cost, benefits and respective challenges to its realization. Second, two papers discuss potential asymmetric pricing in the retail fuel sector in Germany, realizing an analysis with significantly improved data sets compared to earlier studies to answer more specific research questions.
The first three articles focus on the reconstruction of the German energy market into a low-carbon emission setting, especially by utilizing renewable energies. First, the analysis concentrates on the developing energy policy-related goals and the energy economic status-quo, such as the functioning of the system of feed-in tariffs within the market for renewable energies and its general effects on costs. Second, the study deals more deeply and with a quantitative emphasis on the roll-out of renewable energies in Germany and especially its economic effects, such as costs and benefits for energy consumers. Results showed that until 2030, German electricity consumers will pay around €2011 200 billion for RES installations built before the end of 2011. Third, related to the public opinion on the energy transition process, the dissertation unfolded challenges and misconceptions and offers implications for an improved communication approach. The analysis showed by the use of qualitative, semi-structured, in-depth expert interviews that despite the alleged clarity of goals, about two dozen questioned German energy stakeholders have very diverse reasons for the energy transition. The results indicated that one crucial reason is climate protection while a second one is energy autarchy. However, the heterogeneity of goals and conflicting objectives can lead to social tensions and mistrust, which can be appropriately addressed with specific communication methods (e.g. infographics).
The last two articles focus on econometric analyses regarding potential asymmetric pricing within the German retail fuel sector. In particular, the two papers examine the potential existence of Rockets and Feathers, i.e. higher adjustment speeds of retail fuel prices after oil price increases compared to oil price decreases. The dissertation analyzed a tremendous amount of data regarding retail diesel prices from two databases, compiled and processed by the author. The analysis proved with the help of Error Correction Models (following Engle/Granger) that e.g. specific major brands of retail fuel station as well as the local competitive environment influence the probability of Rockets and Feathers. Additionally, the analysis revealed that the nature of Rockets and Feathers is not static over time, i.e. the magnitude of the effect has dynamics across different time periods and consumer behavior can be seen as one reason for the phenomenon of asymmetric pricing.