@article{BuchholzBach1998, author = {Buchholz, Wolfgang and Bach, Norbert}, title = {Innovatie, Proces of Project?}, series = {"PEM" (De beste Artikelen uit de buitenlandse Vaktijdschriften)}, journal = {"PEM" (De beste Artikelen uit de buitenlandse Vaktijdschriften)}, number = {2}, pages = {57 -- 65}, year = {1998}, language = {en} } @incollection{BuchholzMeiners2008, author = {Buchholz, Wolfgang and Meiners, Daniel}, title = {Attainment of higher quality for innovative ideas by systematic utilisation of external sources}, series = {Attainment of higher quality for innovative ideas by systematic utilisation of external sources}, booktitle = {Attainment of higher quality for innovative ideas by systematic utilisation of external sources}, address = {Hamburg}, year = {2008}, language = {en} } @misc{KappelBuchholz2016, author = {Kappel, Antonia and Buchholz, Wolfgang}, title = {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.}, year = {2016}, language = {en} } @misc{BuchholzKirschTeitscheid2012, author = {Buchholz, Wolfgang and Kirsch, Therese and Teitscheid, Petra}, title = {Sustainable raw material procurement as an answer to the risk of supply in food industry, Leuphana Sustainability Summit, L{\"u}neburg 2012}, year = {2012}, language = {en} } @misc{BuchholzCronedeBie2011, author = {Buchholz, Wolfgang and Crone, Niklas and de Bie, Holger}, title = {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}, year = {2011}, language = {en} } @incollection{Buchholz2014, author = {Buchholz, Wolfgang}, title = {Borderless business - Bridging the gaps between fairly contrastive management concepts}, series = {Baaken, T./Teczke, J. [Edit.]: Managing Disruption and Destabilisation}, booktitle = {Baaken, T./Teczke, J. [Edit.]: Managing Disruption and Destabilisation}, publisher = {International Management Foundation}, address = {Cracow}, isbn = {978-3-938137-49-9}, pages = {143 -- 156}, year = {2014}, language = {en} } @misc{BuchholzdeBieBach2014, author = {Buchholz, Wolfgang and de Bie, Holger and Bach, Norbert}, title = {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, S{\"u}dafrika. 13.-16. April 2014}, year = {2014}, language = {en} } @misc{BuchholzGraweLuehrmann2015, author = {Buchholz, Wolfgang and Grawe, Thomas and L{\"u}hrmann, Matthias}, title = {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}, year = {2015}, language = {en} } @misc{KappelSchieleBuchholz2017, author = {Kappel, Antonia and Schiele, Holger and Buchholz, Wolfgang}, title = {How to capture suppliers' relationships with competitors and complementors? - An approach to supply network mapping using a World Caf{\´e} method, 26th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Coping with the Future: Picking your Battles", Budapest/Balatonfured, Hungary}, year = {2017}, language = {en} } @misc{HoltBuchholzdeBie2017, author = {Holt, Christian and Buchholz, Wolfgang and de Bie, Holger}, title = {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}, year = {2017}, language = {en} } @misc{KappelSchieleBuchholz2018, author = {Kappel, Antonia and Schiele, Holger and Buchholz, Wolfgang}, title = {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.}, year = {2018}, language = {en} } @inproceedings{BuchholzKappelAlbersmannetal.2019, author = {Buchholz, Wolfgang and Kappel, Antonia and Albersmann, Aline and Huang, Jian}, title = {Conceptualisation of a preventive and reactive supply chain risk management approach to manage supply shortages}, series = {IPSERA Conference proceedings}, booktitle = {IPSERA Conference proceedings}, pages = {1 -- 17}, year = {2019}, abstract = {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.}, language = {en} } @inproceedings{BuchholzJeschkeKappeletal.2019, author = {Buchholz, Wolfgang and Jeschke, Felix and Kappel, Antonia and Ruppe, Cathrin}, title = {One way or another - The relationship between trust and transparency in buyer-supplier relationships}, series = {IPSERA Conference proceedings}, booktitle = {IPSERA Conference proceedings}, pages = {1 -- 14}, year = {2019}, abstract = {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 Caf{\´e} method was conducted in an attempt to fill the research gap regarding the correlation of trust and transparency in buyer-supplier relationships.}, language = {en} } @inproceedings{BuchholzKappelSchiele2019, author = {Buchholz, Wolfgang and Kappel, Antonia and Schiele, Holger}, title = {Cost versus Innovation Leaders: When do they need Supply Network Mapping? The impact of SNM on purchasing performance}, series = {IPSERA Conference proceedings}, booktitle = {IPSERA Conference proceedings}, pages = {1 -- 19}, year = {2019}, abstract = {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.}, language = {en} } @inproceedings{BuchholzKappelSchiele2019, author = {Buchholz, Wolfgang and Kappel, Antonia and Schiele, Holger}, title = {Knowing your suppliers: people or media as key sources of information?}, series = {IPSERA Conference proceedings}, booktitle = {IPSERA Conference proceedings}, pages = {1 -- 21}, year = {2019}, abstract = {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.}, language = {en} } @inproceedings{BuchholzKappelSchiele2018, author = {Buchholz, Wolfgang and Kappel, Antonia and Schiele, Holger}, title = {Supplier relationships with competing customers - How can purchasers find out who is the preferred customer?}, series = {IPSERA Conference proceedings}, booktitle = {IPSERA Conference proceedings}, pages = {1 -- 23}, year = {2018}, abstract = {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 Caf{\´e} 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 Caf{\´e}. 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.}, language = {en} } @inproceedings{DelkeSchieleBuchholz2020, author = {Delke, Vincent and Schiele, Holger and Buchholz, Wolfgang}, title = {Mind the Gap: Identifying Skill Gaps in Purchasing and Supply Management}, series = {Proceedings 29th IPSERA conference}, booktitle = {Proceedings 29th IPSERA conference}, year = {2020}, abstract = {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.}, language = {en} } @inproceedings{DelkeSchieleBuchholz2020, author = {Delke, Vincent and Schiele, Holger and Buchholz, Wolfgang}, title = {Identifying Future Skills Requirements: Differentiating between Direct and Indirect Material Purchasers}, series = {Proceedings 29th IPSERA conference}, booktitle = {Proceedings 29th IPSERA conference}, year = {2020}, abstract = {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-Caf{\´e} 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.}, language = {en} } @inproceedings{BuchholzKappel2020, author = {Buchholz, Wolfgang and Kappel, Antonia}, title = {Purchasing in service networks: The impact of high visibility on purchasing performance}, series = {IPSERA Conference Proceedings}, booktitle = {IPSERA Conference Proceedings}, publisher = {IPSERA}, doi = {10.25974/fhms-13742}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-137427}, pages = {1 -- 25}, year = {2020}, abstract = {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.}, language = {en} } @techreport{BuchholzdeBie2020, type = {Working Paper}, author = {Buchholz, Wolfgang and de Bie, Holger}, title = {A Paradigm Shift in Times of Digital Transformation: What are the Determinants of Bank-Fintech Cooperation? Empirical Evidence from the Financial Service Sector}, pages = {18}, year = {2020}, abstract = {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.}, language = {en} }