@article{GleissKohlhagenPousttchi2021, author = {Gleiss, Alexander and Kohlhagen, Marco and Pousttchi, Key}, title = {An apple a day}, series = {Electronic markets : EM ; the international journal of electronic commerce and business media}, volume = {31}, journal = {Electronic markets : EM ; the international journal of electronic commerce and business media}, number = {4}, publisher = {Springer}, address = {Heidelberg}, issn = {1019-6781}, doi = {10.1007/s12525-021-00467-2}, pages = {849 -- 876}, year = {2021}, abstract = {The healthcare industry has been slow to adopt new technologies and practices. However, digital and data-enabled innovations diffuse the market, and the COVID-19 pandemic has recently emphasized the necessity of a fundamental digital transformation. Available research indicates the relevance of digital platforms in this process but has not studied their economic impact to date. In view of this research gap and the social and economic relevance of healthcare, we explore how digital platforms might affect value creation in this market with a particular focus on Google, Apple, Facebook, Amazon, and Microsoft (GAFAM). We rely on value network analyses to examine how GAFAM platforms introduce new value-creating roles and mechanisms in healthcare through their manifold products and services. Hereupon, we examine the GAFAM-impact on healthcare by scrutinizing the facilitators, activities, and effects. Our analyses show how GAFAM platforms multifacetedly untie conventional relationships and transform value creation structures in the healthcare market.}, language = {en} } @article{PousttchiGleiss2019, author = {Pousttchi, Key and Gleiß, Alexander}, title = {Surrounded by middlemen - how multi-sided platforms change the insurance industry}, series = {Electron Markets}, volume = {29}, journal = {Electron Markets}, number = {4}, publisher = {Springer}, address = {Heidelberg}, issn = {1019-6781}, doi = {10.1007/s12525-019-00363-w}, pages = {609 -- 629}, year = {2019}, abstract = {Multi-sided platforms (MSP) strongly affect markets and play a crucial part within the digital and networked economy. Although empirical evidence indicates their occurrence in many industries, research has not investigated the game-changing impact of MSP on traditional markets to a sufficient extent. More specifically, we have little knowledge of how MSP affect value creation and customer interaction in entire markets, exploiting the potential of digital technologies to offer new value propositions. Our paper addresses this research gap and provides an initial systematic approach to analyze the impact of MSP on the insurance industry. For this purpose, we analyze the state of the art in research and practice in order to develop a reference model of the value network for the insurance industry. On this basis, we conduct a case-study analysis to discover and analyze roles which are occupied or even newly created by MSP. As a final step, we categorize MSP with regard to their relation to traditional insurance companies, resulting in a classification scheme with four MSP standard types: Competition, Coordination, Cooperation, Collaboration.}, language = {en} } @article{PousttchiDehnert2018, author = {Pousttchi, Key and Dehnert, Maik}, title = {Exploring the digitalization impact on consumer decision-making in retail banking}, series = {Electronic Markets}, volume = {28}, journal = {Electronic Markets}, number = {3}, publisher = {Springer}, address = {Heidelberg}, issn = {1019-6781}, doi = {10.1007/s12525-017-0283-0}, pages = {265 -- 286}, year = {2018}, abstract = {Retail banking has undergone a massive transformation in the last few years. A major aspect is changing consumer behavior. The aim of the paper is to better understand retail banking consumers regarding the impact of digitalization. Consequently, we acquired online consumer review data from Germany, the UK and US. We analyzed the data using coding techniques of grounded theory, supported by interdisciplinary literature to identify and categorize the relevant influence factors. The outcome of the paper is an integrated model of consumer decision-making in today's retail banking along with four detailed partial models of the respective decision stages.}, language = {en} } @unpublished{PousttchiTilsonLyytinenetal.2015, author = {Pousttchi, Key and Tilson, David and Lyytinen, Kalle and Hufenbach, Yvonne}, title = {Introduction to the Special Issue on Mobile Commerce: Mobile Commerce Research Yesterday, Today, TomorrowWhat Remains to Be Done?}, series = {International journal of electronic commerce}, volume = {19}, journal = {International journal of electronic commerce}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {1086-4415}, doi = {10.1080/10864415.2015.1029351}, pages = {1 -- 20}, year = {2015}, abstract = {Mobile commerce (m-commerce) in the smartphone age is revolutionizing established value networks and transforming the wider economy. In this introduction we strive to build a bridge from the past of m-commerce research to its future. We examine more than a decade of research and conduct a Delphi study among leading scholars in the field. The review reveals significant changes in m-commerce topics as time goes on, and provides initial insights into what the future may hold for us. The most sobering finding is that the m-commerce field has still to establish a strong theoretical foundation. This has been reflected in less than overwhelming success in publishing on the subject in the most prestigious journals of the Information Systems discipline. At the same time, m-commerce forms one of the epicenters of the ongoing digitalization of our life. Therefore, we look forward to m-commerce research rising to the challenge and making significant contributions to understanding one of the important phenomena of our time.}, language = {en} }