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Auflistung nach Autor:in "Risius, Marten"

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  • Zeitschriftenartikel
    A Blockchain Research Framework
    (Business & Information Systems Engineering: Vol. 59, No. 6, 2017) Risius, Marten; Spohrer, Kai
    While blockchain technology is commonly considered potentially disruptive in various regards, there is a lack of understanding where and how blockchain technology is effectively applicable and where it has mentionable practical effects. This issue has given rise to critical voices that judge the technology as over-hyped. Against this backdrop, this study adapts an established research framework to structure the insights of the current body of research on blockchain technology, outline the present research scope as well as disregarded topics, and sketch out multidisciplinary research approaches. The framework differentiates three groups of activities (design and features, measurement and value, management and organization) at four levels of analysis (users and society, intermediaries, platforms, firms and industry). The review shows that research has predominantly focused on technological questions of design and features, while neglecting application, value creation, and governance. In order to foster substantial blockchain research that addresses meaningful questions, this study identifies several avenues for future studies. Given the breadth of open questions, it shows where research can benefit from multidisciplinary collaborations and presents data sources as starting points for empirical investigations.
  • Zeitschriftenartikel
    A Blockchain-Based Approach Towards Overcoming Financial Fraud in Public Sector Services
    (Business & Information Systems Engineering: Vol. 59, No. 6, 2017) Hyvärinen, Hissu; Risius, Marten; Friis, Gustav
    In financial markets it is common for companies and individuals to invest into foreign companies. To avoid the double taxation of investors on dividend payment – both in the country where the profit is generated as well as the country of residence – most governments have entered into bilateral double taxation treaties, whereby investors can claim a tax refund in the country where the profit is generated. Due to easily forgeable documents and insufficient international exchange of information between tax authorities, investors illegitimately apply for these tax returns causing an estimated damage of 1.8 billion USD, for example, in Denmark alone. This paper assesses the potential of a blockchain database to provide a feasible solution for overcoming this problem against the backdrop of recent advances in the public sector and the unique set of blockchain capacities. Towards this end, we develop and evaluate a blockchain-based prototype system aimed at eliminating this type of tax fraud and increasing transparency regarding the flow of dividends. While the prototype is based on the specific context of the Danish tax authority, we discuss how it can be generalized for tracking international and interorganizational transactions.
  • Zeitschriftenartikel
    Mit Social-Media-Stimmungen Börsenkursbewegungen vorhersagen
    (Wirtschaftsinformatik & Management: Vol. 8, No. 3, 2016) Risius, Marten; Akolk, Fabian; Beck, Roman
  • Zeitschriftenartikel
    Shadowbanning
    (Business & Information Systems Engineering: Vol. 66, No. 6, 2024) Risius, Marten; Blasiak, Kevin Marc
  • Zeitschriftenartikel
    Values and Ethics in Information Systems
    (Business & Information Systems Engineering: Vol. 64, No. 2, 2022) Spiekermann, Sarah; Krasnova, Hanna; Hinz, Oliver; Baumann, Annika; Benlian, Alexander; Gimpel, Henner; Heimbach, Irina; Köster, Antonia; Maedche, Alexander; Niehaves, Björn; Risius, Marten; Trenz, Manuel