TY - GEN A1 - Kappel, Antonia A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - How to capture suppliers’ relationships with competitors and complementors? - An approach to supply network mapping using a World Café method, 26th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Coping with the Future: Picking your Battles", Budapest/Balatonfured, Hungary Y1 - 2017 ER - TY - GEN A1 - Kappel, Antonia A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Supplier relationships with competing customers - How can purchasers find out who is the preferred customer?, 27th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing and Supply Chain Management: Fostering Innovation", Athens, Greece. Y1 - 2018 ER - TY - GEN A1 - Kappel, Antonia A1 - Buchholz, Wolfgang T1 - Application of a Supply Net Mapping Model to improve strategic sourcing in the agricultural machinery industry. 25th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing & Supply Management - from efficiency to effectiveness in an integrated Supply Chain Management". Dortmund, Germany. Y1 - 2016 ER - TY - GEN A1 - Holt, Christian A1 - Buchholz, Wolfgang A1 - de Bie, Holger T1 - How to identify indirect material for global sourcing? Conceptualization of a portfolio matrix based on an exploratory empirical study, 26th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Coping with the Future: Picking your Battles", Budapest/Balatonfured, Hungary , 2017 Y1 - 2017 ER - TY - CHAP A1 - Engelking, Bastian A1 - Buchholz, Wolfgang A1 - Köhne, Frank T1 - Design Principles for the Application of Machine Learning in Supply Chain Risk Management: An Action Design Research Approach T2 - Supply Management Research / Ed. Christoph Bode N2 - The opportunity to anticipate delivery failures, shortages or delays in company’s upstream supply chains at an early stage facilitates to take preventive countermeas-ures to mitigate potential damage. However, data-driven predictive technologies such as machine learning (ML) are rarely examined in supply chain risk management (SCRM). The purpose of the following paper is to present a framework of design principles for the application of ML in SCRM. The foundation of this framework is an action design research (ADR) project, which is performed in collaboration with the SCRM department of an automotive company. A predictive ML model is developed and evaluated in collaboration with the company. Based on the findings and observa-tions made during the project, general design principles are derived and grouped by the three interrelated elements of organisation, development and operation, which are to be considered when applying ML in SCRM. Finally, the derived elements and the corresponding design principles are discussed and justified with reference to the literature. Y1 - 2020 SP - 1 EP - 28 PB - Springer CY - Berlin ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang A1 - Stek, Klaas T1 - Defining Industry 4.0 skills in purchasing and supply management T2 - 28th EurOMA conference: Managing the “new normal”: The future of Operations and Supply Chain Management in unprecedented times N2 - To increase maturity within purchasing and supply management (PSM), future purchasing skills are needed based on the technological development towards Industry 4.0. Past research, eg, the work of Bals, Schulze, Kelly, and Stek (2019), started to address this issue based on literature review and interview studies. However, a detailed description of these skills is missing. Utilizing a real-time Delhi study with 45 experts within the PSM field, nine future purchasing skills have been elaborated. Identified skills connect to the maturing and emerging technologies within purchasing and provide a guideline towards Industry 4.0 in purchasing based on a human-centric perspective. Y1 - 2021 ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Mind the Gap: Identifying Skill Gaps in Purchasing and Supply Management T2 - Proceedings 29th IPSERA conference N2 - Nowadays, the human-centric discipline of purchasing and supply management (PSM) is of strategic importance for firms’ success. Within the discipline, scholars address PSM professionals’ skills and provide practitioners with academic insights. Due to changes in the industry environment, changes in the working environment and the task of purchasing professionals are assumed. This paper aims to contribute to the PSM professional skills literature by defining current PSM professionals’ skill gaps as the difference between the acquired skill level and perceived skill importance. Findings show that current PSM professionals feel to be underqualified to abstract the full potential of professional relationships, as buyer-supplier relationships, due to current PSM professionals’ skill gaps. Y1 - 2020 ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Identifying Future Skills Requirements: Differentiating between Direct and Indirect Material Purchasers T2 - Proceedings 29th IPSERA conference N2 - The global development towards the Fourth Industrial Revolution, the so-called Industry 4.0, is steaming forwards. Where cyber-physical systems connect the physical and digital world, allowing for demand identification, without the need for direct human intervention. Further, Artificial Intelligence supports various parts of operative and strategic purchasing. The new purchasing environment forces purchasing professionals to develop new skills. Research is needed to identify appropriate skill sets. Based on a World-Café method with 82 purchasing professionals, a list of 32 essential future skills in purchasing is composed. Further, the identified skills are ranked and assigned to the roles of the direct and indirect material purchasers. Y1 - 2020 ER - TY - CHAP A1 - Delke, Vincent A1 - Buchholz, Wolfgang A1 - Schiele, Holger T1 - Specifying roles in purchasing and supply management in the era of Industry 4.0: A Delphi study T2 - 28th EurOMA conference: Managing the “new normal”: The future of Operations and Supply Chain Management in unprecedented times N2 - New technologies and systems within the field of purchasing and supply management (PSM) call forth responsibilities and require expertise. Moving towards Industry 4.0 in purchasing, increasing attention on specialization within talent and skills, where human capital is needed to exploit the full potential of technologies. Based on an internet-based real-time Delhi study with 47 experts within the PSM field, six future purchasing roles have been defined and elaborated. These future roles connect to the maturing and emerging technologies within the purchasing field and provide a guideline to further develop towards Industry 4.0 in purchasing based on a human-centered evolutionary approach. Y1 - 2021 ER - TY - GEN A1 - Damwerth, Philipp A1 - Bach, Norbert A1 - Buchholz, Wolfgang A1 - Rosculete, Maria-Ana T1 - Collective dynamic capabilities in innovation ecosystems - an analysis of the multi-actor process Y1 - 2023 ER - TY - CHAP A1 - Damwerth, Philipp A1 - Bach, Norbert A1 - Buchholz, Wolfgang T1 - Ecosystem Emergence and Founding Conditions - Lessions Learned from an Imprinting Perspective N2 - The rise of ecosystem prominence has provided several definitions of how we understand ecosystems nowadays. In this context, several scholars have considered influencing factors for ecosystem emergence. This paper addresses this consideration and analyzes the salient characteristics of different ecosystem types and their potential persistence since ecosystem founding to improve the understanding of emergence. We applied a three-step approach (1) identifying ecosystem types based on bibliometric analysis, (2) exploring salient characteristics per ecosystem type using qualitative content analysis and (3) deriving founding conditions from the salient characteristics following a conceptual approach. Based on a bibliometric analysis, we identified business/innovation, entrepreneurial and service ecosystems. In a second step, we developed salient characteristics within the themes of structure, power constellation/interdependencies and governance by inductive coding. As we identified a significant difference in alignment structure, we analyzed if alignment structure persists since ecosystem origin and explains why ecosystems differ. We analyzed potential pairings between alignment structure and their respective founding condition for every ecosystem type. With the alignment structures’ persistence, we can better understand why ecosystem types differ. KW - ecosystems KW - ecosystem emergence KW - imprinting KW - founding conditions KW - bibliometric analysis Y1 - 2022 ER - TY - GEN A1 - Damwerth, Philipp A1 - Bach, Norbert A1 - Buchholz, Wolfgang T1 - Build to last: An analysis of the impact of founding conditions on ecosystem emergence Y1 - 2023 ER - TY - GEN A1 - Damwerth, Philipp A1 - Bach, Norbert A1 - Buchholz, Wolfgang T1 - Entrepreneurial Ecosystems in Contrast: An Integrative Framework on Types and their Salient Characteristics Y1 - 2022 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Meiners, Daniel T1 - Attainment of higher quality for innovative ideas by systematic utilisation of external sources T2 - Attainment of higher quality for innovative ideas by systematic utilisation of external sources Y1 - 2008 CY - Hamburg ER - TY - GEN A1 - Buchholz, Wolfgang A1 - Kirsch, Therese A1 - Teitscheid, Petra T1 - Sustainable raw material procurement as an answer to the risk of supply in food industry, Leuphana Sustainability Summit, Lüneburg 2012 Y1 - 2012 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Kappel, Antonia A1 - Schiele, Holger T1 - Cost versus Innovation Leaders: When do they need Supply Network Mapping? The impact of SNM on purchasing performance T2 - IPSERA Conference proceedings N2 - Buying firms lack transparency about the supplier relationships in their networks. The applica-tion of dedicated tools such as Supply Network Mapping (SNM) can help to visualize and analyze these relationships. However, the impact of such tools on the purchasing performance has not been explored yet. Moreover, companies with different competitive strategies might have different motivations to use these tools. Therefore, this paper tests the impact of supplier relationship information and SNM on the purchasing performance on a large sample of 624 purchasers. A multi-group analysis in structural equation modeling estimates the impact of a cost leadership versus a differentiation strategy on cost saving and innovation performance. We show that information quality and SNM indeed improve the purchasing performance. Moreover, cost leaders use SNM if they know their supplier relationships with sub-suppliers, while innovation leaders use it if they know their supplier relationships with other customers. Hence, our results prove the usefulness of the SNM tool and give recommendations for its use depending on a company’s competitive strategy. Y1 - 2019 SP - 1 EP - 19 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Kappel, Antonia A1 - Schiele, Holger T1 - Knowing your suppliers: people or media as key sources of information? T2 - IPSERA Conference proceedings N2 - Most companies have realized the high importance of becoming the preferred customers of their suppliers to obtain preferential resource allocation. However, they cannot evaluate their own customer attractiveness properly. In order to make the assessment of the own customer status possible, this paper analyzes the impact of several information sources on the preferred customer status knowledge, supplier satisfaction knowledge and knowledge of alternative supplier relationships with other customers. Testing these hypotheses on a sample of 624 pur-chasers, we show that people provide more relevant information on the company’s strategic positioning than media. In particular, the suppliers, competitors and other actors are very im-portant information sources. Following our findings, purchasers should adopt their activities in order to better anticipate their suppliers’ intention and the customer treatment that they can expect from their suppliers. Y1 - 2019 SP - 1 EP - 21 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Kappel, Antonia A1 - Schiele, Holger T1 - Supplier relationships with competing customers - How can purchasers find out who is the preferred customer? T2 - IPSERA Conference proceedings N2 - Focal companies are embedded in complex supply networks consisting of various suppliers, customers, competitors and complementors. The activities of these actors influence the com-petitive position of the focal companies. Some customers achieve preferred customer status and gain preferential treatment, others have to restrain to being standard customers getting less privileged services. Consequently, buying companies in such markets have to achieve transparency about the relationships of their suppliers towards their competitors and comple-mentors in order to map them and to analyse their impact. Current literature lacks a holistic approach to capture these relationships. In which sources can the focal companies find the desired information? Which kind of information do they really need? And in which situations is the need for transparency high and when is it low? The aim of this research is to examine these relationships using a World Café method with purchasers for data gathering followed by a Gioia method to structure the qualitative data. The result is a list of desired knowledge cov-ering business, supplier and collaboration details; a set of information sources clustered in pub-lished and unpublished sources as well as contingency factors regarding general conditions, changes and particular occasions that require a high supplier relationship knowledge. All an-swers have been rated by their importance during the World Café. The answers can help to operationalise the mapping of supplier relationships towards competitors and complementors in order to assess the own customer status compared to other customers. KW - Supply network mapping Y1 - 2018 SP - 1 EP - 23 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Kappel, Antonia A1 - Albersmann, Aline A1 - Huang, Jian T1 - Conceptualisation of a preventive and reactive supply chain risk management approach to manage supply shortages T2 - IPSERA Conference proceedings N2 - Particularly in times of disruptive changes, companies need an early warning system for risks in their supply chains to gain relevant information in a timely manner. Furthermore, they require suitable action plans and strategies to help react when a risk occurs. Based on an in-depth case study at an automotive parts supplier producing electronic systems and lighting components, this paper develops a holistic supply chain risk management framework. After investigating the specific supply chain risks to support critical parts management, standardised processes and procedures are developed to improve the preventive supply chain risk strategy cycle, as well as the reactive critical parts management cycle. Y1 - 2019 SP - 1 EP - 17 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Kappel, Antonia T1 - Purchasing in service networks: The impact of high visibility on purchasing performance T2 - IPSERA Conference Proceedings N2 - While the service sector is growing rapidly, the purchasing of services has not yet received significant attention in theory or practice. Service purchasers face serious challenges, and existing purchasing practices for services are often non-strategic. We choose an exploratory–qualitative research approach to investigate the purchasing of IT, logistics and Maintenance, Repair, and Overhaul (MRO) services. In particular, we focus on the role of visibility and analyze how service purchasers can benefit from extensive knowledge about their service networks. We determine that visibility indeed adds significant value to service purchasing and can help service purchasers to decrease costs, mitigate risks and maintain competitiveness. Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-137427 SP - 1 EP - 25 PB - IPSERA ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - Jeschke, Felix A1 - Kappel, Antonia A1 - Ruppe, Cathrin T1 - One way or another – The relationship between trust and transparency in buyer-supplier relationships T2 - IPSERA Conference proceedings N2 - Based on a variety of environmental, technological, and product-orientated changes, there has been a shift towards increased collaboration between buyers and suppliers. This paper examines the mutual influence of trust and transparency at different developmental stages of these collaborative relations. In particular, the research investigates the existence of a direct correlation between trust and transparency, as well as indirect dependencies to each other through environmental factors. An extensive literature review combined with an exploratory-qualitative World Café method was conducted in an attempt to fill the research gap regarding the correlation of trust and transparency in buyer-supplier relationships. Y1 - 2019 SP - 1 EP - 14 ER - TY - GEN A1 - Buchholz, Wolfgang A1 - Grawe, Thomas A1 - Lührmann, Matthias T1 - How to apply buyer-supplier-supplier relationships for defining sourcing strategies. 24th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Preparing for new competitive challenges". Amsterdam, Netherlands. 29. March -1. April 2015 Y1 - 2015 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - De Bie, Holger A1 - Kochendörfer, Ralph T1 - Managing the supply side of platforms: How does complementor management work for data-driven B2B platforms? T2 - IPSERA conference proceedings N2 - In the so-called ecosystem economy, new platform-based business models evolve rap-idly based on the prospects of digital technology. In the B2B context especially, data-driven platforms are highly relevant. Thus far, little research has been conducted on service providers, the so-called complementors of data-driven platforms. Therefore, this paper represents just a starting point for gaining deeper insights into the different facets of complementor management. For empirical evidence, we draw on semi-structured expert interviews with platform managers. The findings outline the distinct characteristics of open and closed platforms which need to be taken into account for complementor management. Moreover, the paper reveals a number of differences in managing suppliers compared to managing complementors. In addition, our study shows that the key factors influencing complementor management include platform openness, partnership intensity, strategic fit, and market structure respectively poten-tial. Y1 - 2021 SP - 1 EP - 22 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - De Bie, Holger A1 - Kochendörfer, Ralph T1 - Supply Side of Data-Driven B2B Platforms: A Complementors’ Perspective T2 - 28th EurOMA conference: Managing the “new normal”: The future of Operations and Supply Chain Management in unprecedented times conference proceedings N2 - Innovative business models for data-driven B2B platforms evolve rapidly based on the prospects of digital technology. In addition to the platform provider, service providers on the supply side of the digital platform - the so-called complementors - play an important role in the process of value creation. This paper highlights the complementors’ perspective on the different facets of complementor relationship management (CoRM) and answers the following research questions: From the perspective of a complementor, what are the main fields of CoRM for data-driven B2B platforms? What factors of influence comprise the reason complementors join a platform? Y1 - 2021 SP - 1 EP - 13 ER - TY - GEN A1 - Buchholz, Wolfgang A1 - de Bie, Holger A1 - Bach, Norbert T1 - Rationales and Industry Differences of Concurrent Sourcing in the German Agricultural and Chemical Industry. 23rd Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing and Supply Management in Difficult Times - The Sky is the Limit". Pretoria, Südafrika. 13.-16. April 2014 Y1 - 2014 ER - TY - RPRT A1 - Buchholz, Wolfgang A1 - de Bie, Holger T1 - A Paradigm Shift in Times of Digital Transformation: What are the Determinants of Bank-Fintech Cooperation? Empirical Evidence from the Financial Service Sector N2 - The financial services sector is undergoing a digital transformation. But the emerging picture is very different from the innovation-driven revolution that was initially expected. Due to the variety of challenges, banks and mostly young financial technology companies (fintechs) are increasingly cooperating instead of competing. Yet despite the rapidly growing importance of bank-fintech cooperation, there is still a lack of empirical evidence on the determinants. We use an explorative research design and conduct semi-structured interviews to contribute to this research field. Our findings illustrate that banks are primarily concerned with access to innovation, while fintechs mainly focus on balancing their resource constraints. Y1 - 2020 ER - TY - RPRT A1 - Buchholz, Wolfgang A1 - de Bie, Holger T1 - Managing the Supply-Side of Digital Platforms: First Insights from the Financial Services Sector N2 - The aim of this paper is to contribute knowledge on the interface and relationship be-tween digital platforms in the financial services sector and the service providers on its supply-side. Based on an explorative research design with literature research and three expert interviews, we examine the categories of service providers that can be distin-guished, the factors of influence that are relevant for selecting service providers, and the main benefits and risks for partnerships with service providers. The results are a starting point for deeper investigation and the creation of research questions for future projects in other industries. Y1 - 2020 ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - De Bie, Holger T1 - Managing the Supply-side of Digital Platforms: Framework, Categorisation and Selection of Complementors for Industrial IoT- and Financial Services Platforms T2 - Supply Management Research: Aktuelle Forschungsergebnisse 2021 (Advanced Studies in Supply Management) / Hrsg. Christof Bode N2 - In the so-called ecosystem economy, new platform-based business models evolve rapidly based on the prospects of digital technology. Thus far, little research has been conducted on the supply side of digital platforms which also explains the lack of empirical evidence. We develop a framework, categorise complementors, and analyse the main factors of influence for the evaluation and selection of complementors. For our analysis, we consider both industrial IoT platforms as well as financial services platforms. In addition, we use an explorative research design and conduct semi-structured interviews to contribute to this research field. Top-level managers of digi-tal platforms in both industries were interviewed as experts. In addition, the study also considered secondary data to increases the overall reliability and validity in terms of triangulation. As a result, our study reveals both a number of similarities and differences with regard to complementor management for industrial IoT- and financial services platforms. Y1 - 2021 SN - 978-3-658-35448-0 U6 - http://dx.doi.org/10.1007/978-3-658-35449-7 SP - 233 EP - 256 PB - Springer CY - Berlin ER - TY - CHAP A1 - Buchholz, Wolfgang A1 - De Bie, Holger T1 - Complementor relationship management for Data-driven B2B platforms: Towards a Holistic approach T2 - International Forum on Knowledge Asset Dynamics 2021 conference proceedings N2 - In the so-called ecosystem economy, new platform-based business models evolve rapidly based on the prospects of digital technology. Especially in the B2B context, data-driven platforms are highly relevant. Thus far, little research has been conducted on the supply side of data-driven platforms and especially on service providers, the so-called complementors. Therefore, this paper offers insights into the various facets of complementor relationship management (CoRM). The paper aims to develop a framework for the management of complementors of data-driven B2B platforms. For empirical evidence, we draw on 14 semi-structured expert interviews with platform managers and complementors. The findings outline two big areas of CoRM and discuss distinct characteristics of partner management and technology management. For partner management the differentiation into open and closed platform needs to be taken into account for complementor relationship management. Moreover, our study reveals the key factors of technology management which lead from platform infrastructure to digital applications like digital twins or predictive maintenance. Y1 - 2021 SP - 1 EP - 25 ER - TY - GEN A1 - Buchholz, Wolfgang A1 - Crone, Niklas A1 - de Bie, Holger T1 - Changing the Value Chain - Conceptional Framework and Case Studies for In- and Outsourcing Strategies, EIASM Colloquium on Organisational Change and Development - Advances, Challenges and Development, Malta 2011 Y1 - 2011 ER - TY - JOUR A1 - Buchholz, Wolfgang A1 - Bach, Norbert T1 - Innovatie, Proces of Project? JF - "PEM" (De beste Artikelen uit de buitenlandse Vaktijdschriften) Y1 - 1998 IS - 2 SP - 57 EP - 65 ER - TY - CHAP A1 - Buchholz, Wolfgang T1 - Borderless business - Bridging the gaps between fairly contrastive management concepts T2 - Baaken, T./Teczke, J. [Edit.]: Managing Disruption and Destabilisation Y1 - 2014 SN - 978-3-938137-49-9 SP - 143 EP - 156 PB - International Management Foundation CY - Cracow ER -