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  • BB

  • Towards an Understanding of Rich Picture Interpretation

    • Authors: Bell, Simon;  Advisor: -;  Participants: Berg, Tessa; Morse, Steve (2019)

  • This paper considers the value of the Rich Picture (RP) as a means to capture data from multiple groups exploring a question, problem or issue. RPs emerge from group work by unravelling and integrating understandings, but to date there have been no attempts to consider ways in which the RPs from different groups analysing the same question can be, or indeed should be, objectively compared. The aim of this paper is to investigate the maximum learning potential from the RP, and we develop and use a form of Content Analysis (CA) called Eductive Interpretation (EI) specifically for RPs. The paper illustrates the process of EI by drawing upon a series of RPs created by groups in the Lebanon. The groups were all working on issues involved in coastal zone management, and the resulting anal...
  • BB

  • Allocation planning in sales hierarchies with stochastic demand and service-level targets

    • Authors: Kloos, Konstantin;  Advisor: -;  Participants: Pibernik, Richard; Schulte, Benedikt (2019)

  • Matching supply with demand remains a challenging task for many companies, especially when purchasing and production must be planned with sufficient lead time, demand is uncertain, overall supply may not suffice to fulfill all of the projected demands, and customers differ in their level of importance. The particular structure of sales organizations often adds another layer of complexity: These organizations often have multi-level hierarchical structures that include multiple geographic sales regions, distribution channels, customer groups, and individual customers (e.g., key accounts). In this paper, we address the problem of “allocation planning” in such sales hierarchies when customer demand is stochastic, supply is scarce, and the company’s objective is to meet individual customer ...
  • BB

  • Exploiting investor sentiment for portfolio optimization

    • Authors: Banholzer, N.;  Advisor: -;  Participants: Heiden, S.; Schneller, D. (2019)

  • The information contained in investor sentiment has up to now hardly been used for portfolio optimization, although theoretical works demonstrate that it should not be neglected and it has already been shown to contain exploitable information on future returns and volatility. Employing the approach of Copula Opinion Pooling, we explore how sentiment information regarding international stock markets can be directly incorporated into the portfolio optimization procedure. We subsequently show that sentiment information can be exploited by a trading strategy that takes into account a medium-term reversal effect of sentiment on returns. This sentiment-based strategy outperforms several benchmark strategies in terms of different performance and downside risk measures. More importantly, t...
  • BB

  • Alignments between strategic content and process structure: the case of container terminal service process automation

    • Authors: -;  Advisor: -;  Participants: - (2019)

  • In this study, we look at Porter’s (Competitive strategy, Free Press, New York, 1980) generic strategic classification of low cost, differentiation, or focus strategies. The second element is the process structure of the port, which may have been impacted by technological innovation. Using the framework of contingency theory, we explore the interface of strategic content and process structure and how this interface impacts the service process automation. A multiple case study is conducted on a sample of 20 container terminals, selected from the list of 2014 Journal of Commerce’s Top Productive Terminals. We come up with three important findings. First, a port’s strategic market position determines the choice of overall business strategy. If a port is strategically positioned as an in...
  • BB

  • Design matters: on the impact of compliance program design on corporate ethics

    • Authors: Sto ¨ ber, Thomas;  Advisor: -;  Participants: Kotzian, Peter; Weißenberger, Barbara E. (2019)

  • Corporate scandals led to an increased interest in improving managers’ compliance. To this end, companies implement compliance programs including codes of conduct, compliance training, and whistle-blowing as core elements. Previous research has focused on the impact of the mere existence of one or several compliance program’s elements on compliance. Compliance programs differ substantially from company to company, for instance, in how training is organized and how the code looks like. This makes direct comparisons of the results challenging. Until now, it is poorly understood if and how the design of a compliance program’s element affects compliance. This paper investigates firstly, whether codes per se are an effective coreelement of compliance programs; secondly, whether the way a...
  • BB

  • Is data envelopment analysis a suitable tool for performance measurement and benchmarking in non-production contexts?

    • Authors: Wojcik, Victoria;  Advisor: -;  Participants: Dyckhoff, Harald; Clermont, Marcel (2019)

  • After 40 years of research with thousands of application-oriented scientific papers, empirical evidence that data envelopment analysis (DEA) has really improved the practice of performance measurement and benchmarking in real-life non-production contexts is rare. The main reason for this deficit may be that DEA is founded on the concepts of production theory such as production possibility set or returns to scale. These concepts can hardly be applied to pure multiple-criteria evaluation problems, which are often attempted to be solved using DEA. This paper systematically investigates strengths and weaknesses of DEA in the exemplary case of welfare evaluation using real data on 27 countries of the European Union. We analyze and explain the differences in the results of various frequent...
  • BB

  • Can hierarchy hold back the dynamics of selfreinforcing processes? A simulation study on path dependence in hierarchies

    • Authors: Petermann, Arne;  Advisor: -;  Participants: Schreyo ¨ gg, Georg; Fu ¨ rstenau, Daniel (2019)

  • Theories of path dependence and incumbent inertia assume that self-reinforcing mechanisms lead to highly persistent and eventually inefficient institutional solutions. The resulting lock-in is likely to threaten the viability of an organization. While path dependence theory was initially developed as a market-based approach, it has more recently been transferred to institutional settings and in particular to hierarchies. Some critics doubt, however, its applicability to hierarchical organizations. The major argument states that asymmetric power structures in organizations differ significantly from symmetric coordination modes and autonomous evolutionary dynamics. Hierarchical authority is assumed to be stronger and to rule out emergent autonomous dynamics. This reasoning raises the ...