This cumulative dissertation consists of four papers that investigate retailer switching and identify potential and threat of cross-channel retail services (CCRS) for retail businesses. The first, conceptual paper compares different theories and models of retail quality. It derives the concept of retailer aspects as a framework to measure retailer quality and further discusses how CCRS can serve as a tool to enhance those retailer aspects. The second paper discusses results from a consumer panel survey and quantifies the influence of satisfaction with retailer aspects on retailer switching during webrooming behavior. The findings of this second paper present the two retailer aspects assurance of delivery and competitive product pricing as key determinants for retailer switching. The third paper defines CCRS and outlines a conceptual classification scheme for CCRS assessments – the CCRS Pentagon. The fourth paper quantifies the impact of CCRS adoption and retailer aspect preferences on CCRS-induced retailer switching based on a second consumer panel survey. Results from this second study affirm the existence of CCRS-induced retailer switching. The paper concludes that CCRS can serve as a retailer’s lock-in mechanism, but that the availability of CCRS in retail environments also threatens retail businesses. In sum, the dissertation provides academic contributions and suggestions for further academic research as well as practical implications and management tools for application in retail businesses.:I. Introduction II. Enhancing Multi-Channel Retail Quality through Cross-Channel Services III. What Drives Competitive Webrooming? The Roles of Channel and Retailer Aspects IV. Cross-Channel Retail Services: A Service Classification Along The Retail Function V. Service-induced Retailer Switching – Power of Cross-Channel Retail Services VI. Conclusion Appendix A: Estimated parameters in baseline-category logit model Appendix B: Conditional marginal effects and conditional probability Appendix C: T-Tests for retailer aspects per service example

Die Dissertation befasst sich mit den Folgen negativer kritischer Ereignisse und gibt Hinweise, was Manager vor und nach dem Ereignis tun könnten, um potentiell negative Effekte zu minimieren. Während sich die ersten zwei Aufsätze mit der Wirkung kritischer Ereignisse aus Sicht der Konsumenten befassen, widmen sich die Aufsätze 3 und 4 der Shareholder-Perspektive. Aufsatz 1 untersucht die Wahrnehmungsveränderungen in Folge verschiedener Ereignisse mit Hilfe des Konzepts der Markenpersönlichkeit. Die Ergebnisse des Online-Experimentes implizieren, dass die negative Wirkung von der Markenstärke, der Geschäftsbeziehung vor bzw. während des Vorfalls und der Art des Ereignisses abhängt. Aufsatz 2 analysiert, ob die Effekte auch mit Hilfe des Konzepts des kundenbasierten Markenwerts bestätigt und erweitert werden können. Zu diesem Zweck werden die Reaktionen nach Bekanntwerden derselben kritischen Ereignisse für die Markenwertdimension „Perceived quality“, „Perceived value“, „Brand personality“, „Organizational associations“, und „Loyalty“ quantifiziert. In Übereinstimmung mit den in Aufsatz 1 gewonnenen Erkenntnissen deuten die Ergebnisse darauf hin, dass sowohl ein hoher Markenwert und das anhaltende persönliche Produkterlebnis während eines kritischen Ereignisses den negativen Effekt mindert, als auch eine zwischen tatsächlichen und potentiellen Kunden differenzierende Kommunikationsstrategie im Nachgang sinnvoll sein könnte. Die Aufsätze 3 und 4 untersuchen auf Basis einer „Event study“ den Zusammenhang zwischen der Veröffentlichung von „Corporate Reputation-Rankings“ des Manager Magazins und dem Shareholder Value. Die gefundenen Ankündigungseffekte weisen darauf hin, dass, über die gezeigte Verbindung zwischen Reputation und Shareholder Value, die in Folge kritischer negativer Ereignisse resultierende Reputationsänderung durch Investoren berücksichtigt wird. / The doctoral dissertation analyzes effects of negative critical incidents and points out, what manager could do before and after an incident in order to minimize possible negative impacts. While the first two essays take a closer look at effects of critical incidents from the consumer’s point of view, the essays 3 and 4 deal with the shareholder perspective. Essay 1 examines perceptional changes in consequence of various incidents using the concept of brand personality. The results of the online experiment imply that the negative impact depends on brand strength, type of event and business relation before respectively during the incident. Essay 2 analyzes whether or not effects can be confirmed and extended using the concept of customer based brand equity. For this purpose, reactions of respondents are measured after getting exposed to the same critical incidents as in the previous essay. The reactions are quantified for brand equity dimensions such as perceived quality, perceived value, brand personality, organizational associations and loyalty. The results are in line with findings of Essay 1. They indicate, on the one hand, that high brand equity and persistent product experience during crisis reduce negative effects and, on the other hand, that a communication strategy which differs between actual and potential customers could be favorable after the incident. Using event study methodology, the Essays 3 and 4 examine the linkage between publications of corporate reputation rankings of the Manager Magazin and shareholder value. The existence of negative announcement effects indicates that investors consider a reputational loss in consequence of negative critical incidents via the observed linkage between reputation and share prices.