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Prassler T.,Potsdam Institute for Climate Impact Research | Schaechtele J.,EBS University for business and law
Energy Policy | Year: 2012

Offshore wind power is regarded as a crucial renewable energy technology to achieve the ambitious CO 2 reduction targets of the EU. However, offshore wind power is not yet competitive with traditional electricity generation technologies, so its sustained development depends on national support policies. Employing a DCF model, this paper scrutinizes how national regulations and geographic conditions of designated national offshore wind development areas affect profitability. The focus of the analysis is on a set of hypothetical offshore wind park scenarios from five countries (Belgium, Denmark, Germany, France, and the UK). The inclusion of geographic conditions is significant, since water depth and distance to shore influence costs and because available wind resources determine the amount of electricity produced. The paper's findings are threefold: Firstly, profitability results indicate that currently relevant scenarios in the UK and Germany are most attractive, but that the upcoming UK Round III projects have low attractiveness. Belgium, France, and Denmark follow in the rankings successively. Secondly, there is high variation among scenarios with respect to capital costs-differences amount up to +61%. Lastly, a future scenario assuming technology improvements and learning effects suggests that remuneration levels could be lowered by ~25% by 2020. © 2012 Elsevier Ltd.


Urbach N.,EBS University for business and law | Wurz T.,Horvath and Partner GmbH
Business and Information Systems Engineering | Year: 2012

IT executives entering into information technology (IT) outsourcing arrangements seek various strategic, economic, and technological benefits. However, although several cases of IT outsourcing are considered successful, cases of failure can also be observed. Problems and challenges associated with IT outsourcing often not only relate to the strategic decision whether or not to outsource, but to the operational level as well. Especially organizations with little experience of implementing larger IT outsourcing programs face problems with the steering of external outsourcing providers. In this paper, we propose a reference framework that structures the required processes for an effective steering of IT outsourcing relationships. The research is based on the design science paradigm in information systems research. In a first step,we derive a framework from related literature and knowledge in this particular area. We then undertake extensive fieldwork, including expert interviews and field studies to evaluate our framework and to develop it further. The suggested framework proves to be a viable instrument to support the systematic analysis of current processes and the definition of suitable target processes for the steering of IT outsourcing programs. This paper's primary contribution therefore lies in providing an applicable instrument for practitioners as well as in extending the existing body of knowledge on IT outsourcing governance. © 2012 Gabler Verlag.


Urbach N.,EBS University for business and law | Smolnik S.,EBS University for business and law | Riempp G.,EBS University for business and law
Journal of Strategic Information Systems | Year: 2010

Employee portals are utilized by many companies to improve companies' information exchange, communication, and employee collaboration, as well as to better support their business processes. Owing to limited IT budgets and the need to justify investments in employee portals, assessing the benefits of these is an important field in research and practice. Thus, the purpose of this study is to gain a better understanding of employee portal success. We introduce a theoretical model for this that is based on the DeLone and McLean IS Success Model. Furthermore, we develop hypotheses regarding the associations between different models' success dimensions and test them using more than 10,000 employees' responses collected in a survey of 22 companies. Our results indicate that besides the factors contributing to IS success in general, other success dimensions - like the quality of the collaboration and process support - have to be considered when aiming for a successful employee portal. The study's findings make it possible for practitioners to understand the levers with which to improve their employee portals. By empirically validating a comprehensive success model for employee portals, the study's results advance theoretical development in the area of collaboration-centered systems and present a basis for further research in this field. © 2010 Elsevier B.V. All rights reserved.


Friebe C.A.,EBS University for business and law | Friebe C.A.,Sustainable Business Institute SBI | Von Flotow P.,Sustainable Business Institute SBI | Taube F.A.,EBS University for business and law
Energy Policy | Year: 2014

This study challenges the implicit assumption of homogeneity in national institutional contexts made in past studies of (renewable) energy policy. We propose that institutional differences matter by focusing on several technology-specific and generic policy factors that can foster technology diffusion through private sector activity. More specifically, we explore perceptions of early adopters in emerging economy contexts using wind park project developers as an example. By applying a parsimonious method for our questionnaire as well as qualitative data we make several contributions: Methodologically, we introduce Maximum Difference Scaling to the energy policy domain. Empirically, we identify several public influences on private investment, and assess their relative importance. This leads to new insights challenging findings from industrialized economies; we identified additional institutional barriers to diffusion, hence, the requirement of a combination of technology-specific and generic policy measures. © 2014 Elsevier Ltd.


Hartmann J.,EBS University for business and law | Moeller S.,Roehampton University
Journal of Operations Management | Year: 2014

When it becomes publicly known that products are associated with suppliers that engage in unsustainable behaviors, consumers protest, as Nestlé, Zara, and Kimberly Clark, among others, have learned. The phenomenon by which consumers hold firms responsible for the unsustainable behavior of their upstream partners suggests the notion of "chain liability." This study aims to generate insights into the antecedents and consequences of such consumer responsibility attributions. Using data from four vignette-based survey experiments, the authors find that the chain liability effect increases if an environmental degradation incident (1) results from supplier behavior rather than force majeure, (2) results from a company decision rather than the decision of an individual employee, and (3) is more severe. Responsibility attributions do not differ with varying organizational distance from the supplier, firm size, strategic importance of the supplied product, or the existence of environmental management systems. The chain liability effect also creates strong risks for the focal firm; higher responsibility attributions increase consumers' anger and propensity to boycott. Therefore, firms should work to ensure sustainable behavior throughout the supply chain, to protect them from chain liability. © 2014 Elsevier B.V.


Lerch M.,EBS University for business and law | Spieth P.,EBS University for business and law
IEEE Transactions on Engineering Management | Year: 2013

Doing the right innovation projects is critical to firm's success; therefore, academics and practitioners are striving for optimizing innovation project portfolio management (IPPM). Although some research on certain issues in IPPM has been conducted so far, valid empirical evidence on the use, outcomes, and most important success drivers of portfolio methods in innovation management is rare. We aim at discovering the cause-and-effects of IPPM performance. This paper shows that performance of IPPM may be better understood if it is considered as an integrated system of portfolio balance, strategic alignment, and value maximization simultaneously. Using in-depth data from 29 interviews in 12 companies, we use a grounded theory approach to develop a general model of what drives IPPM in detail and how these causes are related to effects on both project performance and firm performance. According to the findings from these qualitative data, effective IPPM is the result of three constructs: usage of IPPM methods, IPPM design, and project characteristics. These cause-and-effects are moderated by management perception and satisfaction with IPPM. © 1988-2012 IEEE.


Tyssen A.K.,EBS University for business and law | Wald A.,France Business School | Spieth P.,EBS University for business and law
International Journal of Project Management | Year: 2014

Projects as a form of temporary organizing are different from standard organizational processes. Due to their temporary and unique nature, projects are characterized by discontinuous personal constellations and work contents. Although leadership research has called for a consideration of context factors and their effects on leadership, leadership in a temporary setting has hardly been investigated. We therefore extend transactional and transformational leadership theory by looking at it from the perspective of the temporary organization. We develop a research model with testable propositions on the effects of the temporary organizations' characteristics on leadership and on followers' commitment in projects. © 2013 Elsevier Ltd and IPMA.


Friebe C.A.,EBS University for business and law | Friebe C.A.,Sustainable Business Institute SBI | Flotow P.,Sustainable Business Institute SBI | Taube F.A.,EBS University for business and law
Energy Policy | Year: 2013

One of the key challenges of energy access in emerging markets and developing countries is how to reach households and communities that are unlikely to get a grid connection in the long term or those that are connected to the grid but suffer from regular blackouts or low voltage. By surveying entrepreneurs selling Solar Home Systems (SHSs) on a commercial basis in emerging and developing countries, this study is one of the first attempts to quantify the key elements of four potential Product Service Systems (PSSs): Cash, Credit, Leasing and Fee-for-Service. Whereas the Fee-for-Service approach was found to be suitable only under certain conditions, all PSSs share two key elements for successful market deployment: one or more years of maintenance, and customer support in financing these customers' new asset. Moreover, it appears that private sector companies are in principle able to deliver SHSs to households with incomes greater than USD 1000 per year. The implications for policy makers and development aid agencies are, first, to include maintenance services into public programmes or public-private partnerships and, second, to explicitly consider financial risks for entrepreneurs (e.g., customer commitment and repayment conditions). © 2012 Elsevier Ltd.


Ahlemann F.,EBS University for business and law | El Arbi F.,EBS University for business and law | Kaiser M.G.,EBS University for business and law | Heck A.,EBS University for business and law
International Journal of Project Management | Year: 2013

Prescriptive research is at the heart of the project management (PM) disciplines. For decades, researchers and practitioners alike have been searching for methodological solutions to practical project management problems. Scheduling methods or risk management methodologies are just two examples. Despite this long tradition of prescriptive research, PM methods suffer from a number of problems, such as a lack of acceptance in practice, limited effectiveness, and unclear application scenarios. In this article, we identify a lack of empirical and theoretical foundations as one cause of these deficiencies. Based on a review of existing PM literature and a thorough analysis of other successful prescriptive disciplines, we develop a framework designed to serve as a guideline for theoretically grounded prescriptive PM research. The framework outlines how theories and empirical investigations can help build applicable and useful prescriptive research results. We illustrate our framework by applying it to the case of the critical chain method. Our contribution is twofold: our research results can foster the discourse on methodological support for prescriptive PM research; it may also help set up viable prescriptive research designs. © 2012 Elsevier Ltd.


Protopappa-sieke M.,EBS University for business and law | Seifert R.W.,Ecole Polytechnique Federale de Lausanne
International Journal of Services and Operations Management | Year: 2011

Financial supply chain management and working capital management are increasingly under the spotlight as effective approaches to optimising working capital levels and directing cash flows. Especially in a multiproduct environment, efficient working capital allocation can boost company performance, achieve significant cost savings and demonstrate risk-pooling benefits. In this paper, we focus on the interrelation of working capital and stocking decisions for functional, innovative and heterogeneous product portfolios. We analyse the effect of demand correlation, lead time, payment delays, portfolio sizes, and service level constraints for multiproduct portfolios. Due to the dynamic nature of working capital, we resort to simulation in order to derive managerial insights. Our results attest the importance of payment delays on the profitability of a company. In addition, we demonstrate risk-pooling benefits from a financial perspective. © 2011 Inderscience Enterprises Ltd.

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