The General Data Protection Regulation (GDPR) obliges data controllers to inform users about data processing practices. Long criticised for inefficiency, privacy policies face a substantive shift with the recent introduction of privacy labels by the Apple App Store and the Google Play Store....

We study the impact of the implementation of Apple's App Tracking Transparency (ATT) framework on the Apple App Store ecosystem. We use comprehensive data on every app available in both the Apple App Store and Google Play Store ecosystems in the eighteen-month period around the implementation of...

This study analysed the mechanism to generate e-loyalty among customers through e-service quality regarding OFD (OFD) apps. It examined the indirect influence of e-service quality on e-loyalty through the mediation of e-trust and e-satisfaction of customers. The serial mediation approach was...

We study the impact of the implementation of Apple’s App Tracking Transparency (ATT) framework on the Apple App Store ecosystem. We use comprehensive data on every app available in both the Apple App Store and Google Play Store ecosystems in the eighteen-month period around the implementation...

We study the impact of the implementation of Apple's App Tracking Transparency (ATT) framework on the Apple App Store ecosystem. We use comprehensive data on every app available in both the Apple App Store and Google Play Store ecosystems in the eighteen-month period around the implementation of...

App stores have become the subject of controversy and criticism within antitrust. For instance, app developers such as Spotify and Epic Games (creator of Fortnite) allege that Apple’s 30 percent cut of all sales in the App Store violates the antitrust laws and is indicative of monopoly power....

Recent years have been characterized by privacy regulations amid concerns of exploitative data collection and use, thereby also setting boundaries to the data economy that fuels today's ad-funded Internet. An example is Apple's App Tracking Transparency (ATT), which necessitates explicit consent...

Already before the present COVID-19 health crisis an emerging trend could be seen towards offering health services from a distance, called “e-health”. This trend, like so many other developments towards digitalisation of our societies, received a considerable impetus because of the COVID-19...

Introduction and Structure of the Thesis -- Motivation -- The Problem Domain -- Research Design and Goals -- Conceptual Foundation -- Framework Design -- Prototype Development -- Evaluation -- Conclusion.

"Blockchain technology is a disruptive technology that affords businesspeople an opportunity to correct problems of dishonesty, corruption, and poor decision-making. This book crafts blockchain technology for the non-technical expert, to interpret the various applications of blockchain...

This article provides an exploratory systematic mapping of the global ecosystem of COVID-19 pandemic response apps. After considering policy updates by Google Play’s and Apple’s App Store, we analyse all the available response apps in July 2020; their different response types; the apps’...

A lack of platform-level competition among digital marketplaces can result in socially inefficient platform design and meaningful welfare losses, even independent of actively anticompetitive behavior. To illustrate the first-order effects platform design can have on competitive outcomes, I...

By making the App Store the only official channel for iPhone owners to buy apps, Apple has created the only market in which iPhone owners and app developers may transact their business. Apple exploits the bottleneck that it creates by imposing a 15 percent or 30 percent commission on...

A lack of platform-level competition among digital marketplaces can result in socially inefficient platform design and meaningful welfare losses, even independent of actively anticompetitive behavior. To illustrate the first-order effects platform design can have on competitive outcomes, I...

"With metaverse expected to be the next generation of the Internet and its online activities., this book explores its fundamental study and application from the business information systems perspectives"--

Einleitung -- Grundlagen der Untersuchung -- Modellentwicklung und Konzeptionalisierung -- Methodik und Vorgehensweise der empirischen Untersuchung -- Datenbasis und Datenerhebung -- Ergebnisse der empirischen Untersuchung -- Zusammenfassung, Bewertung und Implikationen.

In this paper, we describe an ongoing project to assess the liquidity risk of small and medium enterprises (SMEs) in a network. In doing so we try to mimic the tracing applications that have been done to Covid-19. We built a simple artefact under the shape of a method called LUC (Liquidity for...

The gatekeeper position of app store operators gives them the power to favour their own and the most popular applications in the rankings of search results. Based on parallels with the non-discrimination principle in the European Union's Regulation on Open Internet Access, this article...