Stephan M. Wagner

Last Name

Wagner

First Name

Stephan M.

ORCID

0000-0003-0471-5663

Organisational unit

03813 - Wagner, Stephan M. / Wagner, Stephan M.

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Publications 1 - 10 of 48

Building Resilient Post-pandemic Supply Chains Through Digital Transformation
Klöckner, Maximilian; Schmidt, Christoph G.; Wagner, Stephan M. (2023)
Springer Series in Supply Chain Management ~ Supply Chain Resilience: Reconceptualizing Risk Management in a Post-Pandemic World
The COVID-19 pandemic has created a challenging environment for firms on a global scale. Due to policies aiming to contain the spread of the virus, firms across all industries are forced to quickly adapt to highly dynamic changes in supply and demand, while simultaneously managing internal production disruptions. Most companies experience severe financial consequences during the supply chain disruptions. Digital technologies can be used to create more resilient supply chains that are able to better cope with future large-scale disruptions. In this chapter, we present current industry best practices, related to blockchain, digital platforms, analytics, and digital twins, to provide actionable insights for decision makers.
Outside-insiders: the role of supply networks in post-M&A operational performance
Hu, Wenjin; Peng, Yuqi; Shou, Yongyi; et al. (2025)
International Journal of Operations & Production Management
Purpose Adopting network theory, this study explores how efficiency-driven mergers and acquisitions (M&As) affect acquiring firms’ short-term and long-term operational performance and how acquiring firms’ supply network structural attributes moderate the effects of efficiency-driven M&As in both the short and long terms. Design/methodology/approach We collect archival data from multiple sources and construct a sample that consists of 1,568 manufacturing firms during 2010–2017. We apply propensity score weighting-enabled fixed effects models to test the proposed hypotheses. Findings We find that efficiency-driven M&As lead to decreased operational performance in the short term while having a neutral effect on the firm’s long-term operations. Moreover, both supply network betweenness centrality and structural holes of the acquiring firm help attenuate the short-term negative M&A effect, whereas only betweenness centrality significantly elevates the acquiring firm’s post-M&A operational performance in the long term. Originality/value This study provides further evidence to the M&A performance literature by distinguishing the short- and long-term effects of efficiency-driven M&As. More importantly, it advances the understanding of the critical role of supply networks in tackling post-M&A challenges. It enriches the supply network literature by investigating the differential effects of betweenness centrality and structural holes, thereby disclosing the nuances between the bonding and flow functions of supply networks.
Just-in-time for supply chains in turbulent times
Choi, Thomas Y.; Netland, Torbjörn; Sanders, Nada; et al. (2023)
Production and Operations Management
The Covid-19 pandemic and other recent disruptions in the early 2020s led to sections in the business press blaming just-in-time (JIT) practices for operational failings. Consequently, there are calls for moving away from JIT toward holding more inventory as preparation against future disruptions, which is referred to as just-in-case. The academic community is also divided. Some scholars argue that JIT is not resilient, while others maintain that JIT can continue providing superior performance even with disruptions. Motivated by this debate, we discuss various misconceptions about JIT that underlie this debate. Furthermore, we present different ways to adapt JIT for turbulent environments and argue that companies can improve their supply chain performance if JIT supply chain segments are chosen fittingly-even more so-during disruptions.
Measuring and improving the impact of humanitarian logistics consulting
Wagner, Stephan M.; Thakur-Weigold, Bublu; Gatti, Federico; et al. (2021)
Production Planning & Control
Humanitarian operations are under increasing pressure to improve their efficiency and effectiveness. To support them, a small industry of consultants and other advisors has developed, most of which work pro bono. This article addresses the question of interest to both international humanitarian organisations and their helpers, which is, how to measure and manage the impact of these helpers. Action research based upon interviews and workshops arrives at a conceptual framework to project the effects of humanitarian logistics consulting interventions, key performance indicators and best practices for the governance and steering of humanitarian logistics consulting projects.
Blockchain and network governance: learning from applications in the supply chain sector
Naef, Stefan; Wagner, Stephan M.; Saur, Christian (2024)
Production Planning & Control
Blockchain applications have the potential to greatly improve operational efficiency and effectiveness along the supply chain. Although we know what the barriers to the adoption of blockchain are, we know little about how firms overcome these barriers to reap the benefits of the technology. A particular challenge in adopting blockchain applications is the need to build and implement them among a network of users, requiring firms to collaborate. To manage and advance such collaborative efforts, blockchain projects install a centralised leadership. There is thus a tension between the need for centralised leadership and decentralised control to justify the use of blockchain technology. In this study, we investigate how blockchain projects navigate this tension. We employ a multiple case study methodology to compare five collaborative blockchain applications that are live today. Our findings indicate that the case applications all combine centralised management with decentralised oversight in a similar manner. We argue that this combination of centralised and decentralised control is a great benefit for the successful development and implementation of blockchain applications. The results underline that to benefit from blockchain technology in supply chain applications, an important collaborative organisational effort is necessary.
Supporting Intellectual Property Protection: Blockchain Technology as a Catalyst for Open Innovation
Wagner, Stephan M.; Fink, Alexander A.; Ehrnsperger, Jonas F.; et al. (2025)
California Management Review
As the access, sharing, and transfer of intellectual property (IP) are central to open innovation (OI) projects, preventing the leakage of IP is critical. The emergence of blockchain has prompted organizations to seek support from this technology to protect IP. However, the potential applications, challenges, and benefits for OI projects at the technology/legal interface are not well understood. This article shows that while blockchain technology is not the solution to all IP protection problems, it has the potential to significantly improve the status quo by creating an immutable record of the existence, integrity, and ownership of files at specific points in time. It also offers guidance to practitioners on how to extend and complement their existing IP protection, ultimately enhancing their negotiating leverage and collaboration with OI partners.
Startups in the Logistics Sector: Value Propositions and Potential Impact
Wagner, Stephan M.; Kurpjuweit, Stefan (2023)
Global Logistics and Supply Chain Strategies for the 2020s
As a driving force of innovation and digitalization, startups have become important players in the logistics sector. Startups might be suppliers, partners, competitors, or acquisition targets in the eyes of established logistics service providers and shippers. Disregarding the role startups will play in the logistics sector, a better understanding of the phenomenon "logistics startups" will lead to better decisions whether and how to collaborate or compete with startups. In order to contribute to the scholarly and practical body of knowledge on logistics startups, we offer an original study on how to categorize logistics startups that emerged on the market and how these startups might affect incumbent players in the logistics sector. Startups can get inspirations where they "fit" into the logistics sector and craft a stronger value proposition.
Manufacturing firms' credibility towards customers and operational performance: the counteracting roles of corruption and ICT readiness
Hu, Wenjin; Wagner, Stephan M.; Shou, Yongyi (2024)
International Journal of Logistics Research and Applications
Firms benefit from being reliable and trustworthy towards their customers. In many countries, however, corruption spills over to supply chain relationship practices and weakens a firm's credibility towards its customers (CTC). In this study, we investigate the influence of corruption on the relationship between CTC and firm performance. Empirical analyses of manufacturing firms in multiple countries demonstrate that corruption diminishes the effect of CTC on firms' operational performance. Moreover, a country's information and communication technology (ICT) readiness can counteract the negative impact of corruption. Our study adds to the literature on supply chain relationship management by considering the influence of two institutional contingencies (i.e. corruption and ICT readiness) on the effectiveness of CTC as an important mechanism of supply chain governance. Our study complements the literature on transaction cost economics and urges managers to consider the two characteristics of their firms' institutional environments when managing relationships in their supply chains.
Days Inventory Outstanding: Der Liquiditätshebel in der Wertschöpfungskette
Grosse-Ruyken, Pan Theo; Zaremba, Boris W.; Wagner, Stephan M. (2012)
Industrie Management
Die durch überhöhte oder ineffiziente Lagerhaltung entlang der Wertschöpfungskette verursachte Kapitalbindung raubt Unternehmen dringend benötigte Liquidität. In den vergangenen Jahren ist Days Inventory Outstanding (DIO), welche die Dauer der Kapitalbindung in Lagerbeständen wiederspiegelt, fast unverändert geblieben. Das Ergebnis unserer Untersuchung zeigt, dass Unternehmen, die einen Verantwortlichen für das Supply Chain Management dezidiert auf Führungsebene verankert haben, eine durchschnittlich 4,5 Tage kürzere DIO-Dauer gegenüber Unternehmen der gleichen Branche aufweisen. Die dadurch durchschnittlich freigesetzte Liquidität in Höhe von 92,7 Millionen US-Dollar entspricht 8,7 % der Lagerbestände und 1 % des Umsatzes und spiegelt sich in einem durchschnittlich fünf Prozentpunkte höheren Return on Capital Employed (ROCE) wieder.
Blockchain for Supply Chain Traceability: Case Examples for Luxury Goods
Schmidt, Christoph G.; Klöckner, Maximilian; Wagner, Stephan M. (2021)
Future of Business and Finance ~ Digital Business Models in Industrial Ecosystems: Lessons Learned From Industry 4.0 Across Europe
Blockchain presents multiple use cases for supply chain management. As supply chains are increasingly complex and global inter-organizational networks, trust and transparency are key success factors. Blockchain provides a promising solution to address supply chain transparency by enabling product tracing along the supply chain, potentially ensuring product authenticity and provenance as well as ethical production. This chapter focuses on supply chain traceability for luxury goods, where counterfeits present a special challenge. Three case examples in luxury goods illustrate the potential benefits of blockchain.

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Stephan M. Wagner

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