Vespermann J.,Strascheg Institute for Innovation and Entrepreneurship SIIE |
Wald A.,France Business School
Journal of Transport Geography | Year: 2011
Soaring air traffic, increasing urban expansion and airports operating at full capacity are reasons that have caused a discussion about improvements in airport landside access systems. One approach to better match customer demands and address airport congestion is to facilitate the intermodal integration of airports. Building on a survey on intermodal passenger air transportation, we elaborate on the current and future situation at major airports. Our findings indicate a high modal concentration and dependence on individual access modes. However, while airport managers intend to reduce the share of these modes, they plan to increase that of high-occupancy airport access modes. We analyze the underlying motives that cause airports to extend their connections to surface infrastructure. In a case study, we assess an intermodal best practice solution for the integration of air and rail. © 2011 Elsevier Ltd.
Polzin F.,Strascheg Institute for Innovation and Entrepreneurship SIIE |
Polzin F.,Sustainable Business Institute SBI |
Migendt M.,Strascheg Institute for Innovation and Entrepreneurship SIIE |
Taube F.A.,Solvay Group |
von Flotow P.,Sustainable Business Institute SBI
Energy Policy | Year: 2015
This paper examines the impact of public policy measures on renewable energy (RE) investments in electricity-generating capacity made by institutional investors. Using a novel combination of datasets and a longitudinal research design, we investigate the influence of different policy measures in a sample of OECD countries to suggest an effective policy mix which could tackle failures in the market for clean energy. The results call for technology-specific policies which take into account actual market conditions and technology maturity. To improve the conditions for institutional investments, advisable policy instruments include economic and fiscal incentives such as feed-in tariffs (FIT), especially for less mature technologies. Additionally, market-based instruments such as greenhouse gas (GHG) emission trading systems for mature technologies should be included. These policy measures directly impact the risk and return structure of RE projects. Supplementing these with regulatory measures such as codes and standards (e.g. RPS) and long-term strategic planning could further strengthen the context for RE investments. © 2015 Elsevier Ltd.
Georgi C.,Strascheg Institute for Innovation and Entrepreneurship SIIE |
Darkow I.-L.,University of Bremen |
Kotzab H.,University of Bremen |
Kotzab H.,Glasgow Caledonian University
International Journal of Logistics Research and Applications | Year: 2013
The purpose of this paper is to explore the current intellectual foundation of four leading academic journals within the field of logistics and supply chain management. We were interested to identify the most frequently quoted publications as well as their impact on logistics research. We examined 17,000 references of 412 papers and further analysed the 39 top-references with the means of multidimensional scaling (MDS), cluster- and factor analysis. We were able to identify a mix of textbooks and articles from academic journals and revealed a journal-specific citation pattern, not only in the choice of textbooks but also in the choice of referenced methodology papers. We were also able to identify citation streams and citation areas, where it was surprising to find so many general socio-scientific papers and general papers explaining the character of the field. © 2013 © 2013 Taylor & Francis.