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Konferenzveröffentlichung
Not All Reviews are Equal - a Literature Review on Online Review Helpfulness
(Association for Information Systems, 2019)
The amount of online reviews is growing significantly. Between 2014 and 2017, the number of reviews for TripAdvisor grew by 300% and for Yelp by 208%. However, not all online reviews are equally valuable. Some reviews are perceived to be more helpful or trustworthy then others. Hence, plethora of scholars have investigated the role of online reviews and researched factors and characteristics determining its helpfulness. Nevertheless, mixed findings were found. Consequently, the purpose of our paper is to present a ...
Konferenzveröffentlichung
Towards A Taxonomy of Text Mining Features
(Association for Information Systems, 2019)
Recently, text mining has received special attention from both researchers and practitioners, since it enables the development of intelligent and automated services. Text mining has been influenced by different disciplines like computer science, statistics, computational linguistics and library and information sciences. However, text mining features that evolved in one particular discipline are often unknown or rarely used in the other disciplines. No scientific feature framework exits which facilitates costly feature ...
Dissertation
Working after hours, sharing availability expectations, and interrupting yourself: Extending perspectives on ICT-related concepts in research
(2019)
This dissertation investigates Information and Communication Technologies (ICTs) and their role for recovery, well-being, and performance at work. The three empirical studies compiled in this dissertation investigate the influence of ICT work-related use at work and at home, as well as supervisors’ expectations regarding extended availability. The three main goals of the dissertation were to explore alternative ways of understanding ICT-related concepts, to identify additional factors that change their impact and the ...
Aufsatz
Voting on the threat of exclusion in a public goods experiment
(2019-04-01)
Ostracism is practiced by virtually all societies around the world as a means of enforcing cooperation. In this paper, we use a public goods experiment to study whether groups choose to implement an institution that allows for the exclusion of members. We distinguish between a costless exclusion institution and a costly exclusion institution that, if chosen, reduces the endowment of all players. We also provide a comparison with an exclusion institution that is exogenously imposed upon groups. A significant share of ...
Konferenzveröffentlichung
Gestaltung smarter persönlicher Assistenten zwischen Rechtsverträglichkeit und Dienstleistungsqualität
(Gesellschaft für Informatik e.V. (GI), 2019)
Smarte persönliche Assistenten von Amazon, Google und zahlreichen anderen Anbietern ermöglichen es, qualitativ hochwertige elektronische Dienstleistungen anzubieten. Gleichzeitig bringen diese Systeme auch viele Risiken mit sich. Berichte von diskriminierenden oder unverständlichem Systemverhalten häufen sich und verursachen Skepsis in der Gesellschaft. Diesen Problemen kann mit einer gleichermaßen rechtsverträglichen und qualitätsorientierten ITGestaltung entgegengewirkt werden. In diesem Beitrag werden Rechtsvert ...
Konferenzveröffentlichung
Alexa, Can You Help Me Solve That Problem? - Understanding the Value of Smart Personal Assistants as Tutors for Complex Problem Tasks
(universi - Universitätsverlag Siegen, 2019)
In recent decades, the number of students per lecturer at universities has constantly risen. In these learning scenarios, individual lecturer support for helping students actively acquiring new knowledge is hardly possible. However, active student behavior is necessary for successful learning. Smart Personal Assistants such as Amazon’s Alexa or Google’s Home promise to fill this gap by being students’ individual tutors. In order to understand what students expect from Smart Personal Assistants as tutors and how they ...
Aufsatz
Exploring the Supply-Demand-Discrepancy of Sustainable Financial Products in Germany from a Financial Advisor’s Point of View
(2018-03-23)
Although retail investors’ interest in sustainable investment is constantly increasing, German credit unions and co-operative banks offer few sustainable financial products. The purpose of the study is to explore the current gap between supply and demand of sustainable financial investments in German retail banking from a financial advisor’s point of view. We use qualitative analysis of interviews with financial advisors based on a Grounded Theory approach with the aim to identify the key causation in the cause-effect ...
Dissertation
Leading and Following Day by Day
(2018)
This dissertation deals with daily leader-follower interactions, alignment of words and actions, well-being and effectiveness. The first part of the dissertation shows the impact of leader behavior on follower well-being in the context of transformational leadership. The second part goes beyond single leader behaviors and investigates the value-based alignment of two behaviors, namely vision communication and goal setting, and their effects on trust and leaders‘ effectiveness. Turning the lens, the final part sheds ...
Aufsatz
Consumer Preferences for Local Food: Testing an Extended Norm Taxonomy
(2018-04-24)
Consumer attitudes toward consuming and buying locally produced food are well studied. By contrast, the topic of consumer preferences for local food, with a special emphasis on the role of norms, still lacks empirical evidence. To study the influence of norms and morals on the intention to buy local food products, a quantitative study (N = 327) focusing on external social and internalized moral norms was conducted using the constructs of the theory of planned behavior in combination with an extended norm taxonomy and ...
Aufsatz
Die Vergütung nichtärztlicher Leistungen Sozialpädiatrischer Zentren
(2019)
Die Vergütung nichtärztlicher sozialpädiatrischer Leistungen Sozialpädiatrischer Zentren ist seit langem ein streitträchtiges Thema. In jüngster Zeit beschäftigt das Thema immer wieder die zuständigen Schiedsstellen, und im vergangenen Jahr wurde eine längere Auseinandersetzung durch ein Urteil des LSG Berlin-Brandenburg zum Abschluss gebracht. Dieses Urteil soll im folgenden Aufsatz analysiert werden.