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Western organizations increasingly organize work in team-based structures. Members of these teams often differ in various diversity attributes (e. g., gender, age, cultural background). In response, research aims to provide evidence-based recommendations on how to effectively manage diversity in teams. Within diversity research, the diversity faultlines approach has been particularly fruitful. It considers the impact of the alignment of multiple diversity attributes in teams. Strong diversity faultlines are associated with the emergence of relatively homogeneous subgroups in teams and have an overall negative impact on team processes and outcomes. This dissertation investigates factors that mitigate the detrimental consequences of strong diversity faultlines in teams, namely pro-diversity beliefs. It extends faultline literature beyond the conventional focus on processes and outcomes related to team members by emphasizing the leaders´ perspective. The three empirical papers included in this dissertation systematically examine how strong pro-diversity beliefs can help unleashing the positive effects of team diversity despite strong faultlines. The first paper highlights the role of leaders´ pro-diversity beliefs in mitigating the negative impact of diversity faultlines on two team processes: perceived cohesion and social loafing. Moreover, it compares the impact of socio-demographic faultlines (based on gender and age) and experience-based faultlines (based on team tenure and education level). Data was collected in a multisource field sample with 217 team members nested in 44 teams and the corresponding leaders. We found that socio-demographic, but not experience-based faultlines were negatively related to perceived cohesion and positively to perceived loafing. Path analysis further revealed that these relationships were mitigated when leaders held strong pro-diversity beliefs. The second paper extends these findings by additionally taking the impact of members´ pro-diversity beliefs into account. It examines whether the impact of sociodemographic faultlines on performance is contingent on leaders´ and members´ pro-diversity beliefs. Moreover, we assumed that aggregate LMX would mediate this relationship. In a multisource data set obtained from 41 teams with 219 members and the corresponding leaders working for the German Ministry of Foreign Affairs, we found partial support for our hypotheses. As expected, the impact of strong socio-demographic faultlines on diplomats´ performance was least negative when both leaders and members held strong pro-diversity beliefs. However, neither the two-way interactions of faultlines and leaders´ or members´ prodiversity beliefs nor aggregate LMX had a significant impact in our research model. The third paper zooms into processes and outcomes related to team leaders. It investigates how leaders´ pro-diversity beliefs and their perceptions of members´ prodiversity beliefs in teams with strong socio-demographic faultlines impact leaders´ task role assignment, performance expectation, and motivation. To test our hypotheses, we conducted two experimental studies with students, one in Germany (N = 55) and one in the US (N = 134). Findings showed that strong pro-diversity beliefs held and perceived by leaders made them assign task roles that cross-cut rather than aligned with the subgroup structure created by faultlines. Moreover, leaders´ perceptions of members´ pro-diversity beliefs, but not their own beliefs, had a positive impact on their motivation, mediated by their performance expectation. In sum, findings of these three papers extend the literature on diversity faultlines and leadership by systematically demonstrating the mitigating impact of pro-diversity beliefs on faultlines´ detrimental consequences on processes and outcomes related to team leaders and members. Based on various samples, we showed that it is worthwhile to distinguish between pro-diversity beliefs held by leaders, pro-diversity beliefs held by members, and leaders´ perceptions of members´ pro-diversity beliefs. Fostering strong pro-diversity beliefs among leaders and members should thus be a crucial element of effective diversity faultline management in organizations.
Die Fragestellung dieses Forschungsvorhabens resultiert aus der Praxis: Was ist ein christliches Hotel? Ist ein christliches Hotel etwas Besonderes? Wie konkretisieren sich die christlichen Wertehaltungen im betrieblichen Alltag eines Hotels in Deutschland? Gibt es in der betrieblichen Praxis Unterschiede zwischen christlichen und nicht christlichen Hotels aus Sicht der Mitarbeiterinnen und Mitarbeiter christlicher Hotels? Wenn es Unterschiede gibt, welche sind das und sind diese christlichen Werte attraktiv aus Sicht der Mitarbeiterinnen und Mitarbeiter? Können christliche Hotels ihre Werte im Personalmarketing als Anreize verwenden? Welche Anreize erwarten die Mitarbeiterinnen und Mitarbeiter christlicher Hotels grundsätzlich von ihren Arbeitgebern? Gibt es Unterschiede in den Bewertungen der Wichtigkeit der christlichen Ausrichtung christlicher Hotels je nach Glaubenszugehörigkeit (christlich, andere, ohne) der Mitarbeiterinnen und Mitarbeiter christlicher Hotels? Da die Anwendung bzw. Konkretion christlicher Werte im betrieblichen Kontext nicht vom kulturellen außerbetrieblichen Umfeld getrennt betrachtet werden kann, beziehen sich die vorliegenden Ausführungen allein auf christliche Hotels in Deutschland. Das Objekt ´Christliches Hotel´ wurde bislang in der Forschungsliteratur noch nicht näher beschrieben. Der vorgestellte Forschungsansatz wird im Kontext der Anreiz-Beitrags-Theorie (March/Simon, 1958) eingeordnet. Der Anreizaspekt christlicher Werte im Management wird vorgestellt. Hierfür wird auf das Modell bzw. Inventar christlicher Werte zur Unternehmensführung (Schönborn/St. Gallen, 2006) Bezug genommen. Um den Forschungsgegenstand ´Christliches Hotel´ zunächst näher zu beschreiben, wird das in der Qualitätsdiskussion bekannte EFQM Excellence Modell herangezogen und anhand des Werteinventars unternehmensrelevanter christlicher Werte auf die Hotellerie übertragen. Dieses für die christliche Hotellerie entwickelte EFQM Excellence Modell - auch EFQM Excellence Modell Hotel ´C´ genannt - dient zum einen einer ersten Konkretion des Forschungsgegenstandes christliches Hotel und bildet zum anderen die Basis für die empirische Studie. Hierfür wurden 276 Mitarbeiterinnen und Mitarbeiter christlicher Hotels befragt, wie sie die im Rahmen des EFQM Excellence Modell Hotel ´C´ konkretisierten Werte im Management ihres Arbeitgeberhotels wahrnehmen und im Vergleich zu nicht christlichen Hotels und zudem bezüglich der Wichtigkeit bewerten. Die Studienergebnisse zeigen, dass die befragten Mitarbeiterinnen und Mitarbeiter christliche Hotels in den EFQM Konstrukten Führung, Strategie, Mitarbeiter und Prozesse, Produkte und Dienstleistungen sowie in den kulturbezogenen Konstrukten Christliche Werte und Ergänzende christliche Werte im Vergleich zu nicht christlichen Hotels als signifikant besser bewerten. Christliche Werte, sofern sie nicht explizit als solche bezeichnet werden, sind den Mitarbeiterinnen und Mitarbeitern christlicher Hotels in Deutschland unabhängig von ihrer Glaubenszugehörigkeit (christlich, anders, ohne) gleich wichtig. Christlich gläubigen Mitarbeiterinnen und Mitarbeitern christlicher Hotels in Deutschland ist - explizit gefragt - die christliche Ausrichtung ihres Arbeitgebers signifikant wichtiger, als Mitarbeiterinnen und Mitarbeiter ohne Glaubenszugehörigkeit. Christliche Werte spielen für die Mitarbeiterinnen und Mitarbeiter christlicher Hotels in Deutschland zusammenfassend eine wichtige Rolle, diese immateriellen Werte sind starke Beitrags- und Bleibeanreize, die christliche Hotels im Personalmarketing als Anreize verwenden können. Dies gilt umso mehr, wenn die christlichen Werte von den christlichen Hotels in Deutschland nicht nur explizit als solche zusammenfassend genannt, sondern konkret und vor allem realitätsgetreu dargestellt werden.
Wetterstationen
(2017)
Die Arbeiten dieser Anthologie wurden im Rahmen von Wetterstationen, einem Projekt mit fünf internationalen Partnern, das vom Kulturprogramm der Europäischen Union gefördert wird, in Auftrag gegeben. Schriftsteller und Schüler an den fünf Standorten nahmen an dem Projekt teil und der vorliegende Band enthält eine Auswahl ihrer Arbeiten.
Over the last two decades, online advertising has become one of the most important dimension of corporate communications. Nowadays, companies promote their products and services through multiple online marketing channels, for example newsletters, display and video advertising, and most notably, search engine advertising. In this context, statistical models developed in research and practice can be used to measure the effectiveness of advertising activities. The results from these kinds of analyses can, for instance, be used to attribute marketing success (sales, registration, etc.) to individual advertising activities and, thus, to support budget planning for future advertising campaigns. In recent years, a new form of advertising on the Internet has emerged: real-time advertising. Among others, it allows companies to identify potential customers and target them with respect to their interests. In this way, real-time advertising can increase advertising effectiveness and it could, at the same time, improve user experience. With the emerge of this new form of advertising, statistical models have become even more important because they are now being increasingly used to predict online user behavior. The articles included in this dissertation analyze user-level clickstream data generated during multi-channel advertising campaigns (including TV advertising) and during real-time auctions. The goal of the analyses conducted here is to better understand advertising effects and to support decision-making in this context. Most of the analyses are based on Bayesian models. These models allow for a very flexible structure, which enables researchers to model, for instance, heterogeneity across different types of users or non-linear parameters such as users´ reaction times and exponential decay of advertising effects. In addition, these models allow for the inclusion of prior knowledge of parameter distributions, and, therefore, they are well suited for iterative analyses based on clickstream data. Bayesian models can be evaluated in different ways. Instead of only relying on statistical metrics, the articles included in this dissertation aim to estimate the economic value of these models based on their predictive performance. Although this measure can only approximate their true economic value, this approach can be used to compare and evaluate different models and to illustrate the impact of predictive analyses for companies in the context of big data. This dissertation contributes to both information systems research and marketing research and has many managerial implications. First, a process is developed to determine optimal sample sizes representing the best balance between computational costs and predictive accuracy in e-commerce in particular and big data contexts in general. In practice, this process can be used to reduce infrastructure and computational costs. Second, the articles included here describe models that can be used to measure the impact of television ads on users´ online shopping behavior. The models can provide insights concerning the effectiveness of individual television ads, the interactions between different advertising channels and the difference in user behavior of TV-induced customers and their non-TV-induced counterparts. Thereby, the models could support decision-making with respect to future advertising campaigns and targeting. Third, the articles describe several possibilities to extend and improve decision support systems currently used in e-commerce and marketing. These improvements enable practitioners to predict users´ interests for arbitrary products and services by using corresponding websites as dependent variables. This approach can be used to improve the effectiveness of real-time advertising campaigns, especially those intended to raise brand awareness among customers. In addition to these contributions, the articles describe possibilities for future research projects at the intersection of information systems and marketing. These kinds of projects could aim to develop methods to take advantage of new possibilities resulting from technological progress, to increase profits from advertising campaigns and selling ad inventories, to provide deeper insights concerning the effectiveness of multi-channel advertising campaigns, and to improve targeting of individual consumers by considering their interests and privacy concerns.