Purchasing and supply management as a multidisciplinary research field: Unity in diversity?

Since the 1960s, research on Purchasing and Supply Management (PSM) has grown substantially, but in recent times various scholars have challenged the actual progress and coherence of the field. In delivering such critiques, the underlying, dominant view of PSM research is that it constitutes an academic discipline. In contrast, we offer an alternative perspective that views PSM as a multi-disciplinary field of research, drawing from Operations Management, Marketing and Strategy & Organization as reference disciplines. Adopting this perspective, we conduct a review of 2522 purchasing and supply management publications in a multi-disciplinary set of 18 high-impact management journals, published in the period 1995–2014. We analyse how PSM research has developed over time; quantitatively and content-wise, in terms of the topics and theories being addressed. We find that across the three reference disciplines and the specialist PSM journals, there is diversity, with distinct features of each journal group in terms of the one or two most popular topics or theories. Still, considering the full base of PSM publications in each journal group, there is considerable overlap. Supplier Relationship Management is a popular topic throughout, and the top-5 of topics for each of the journal groups demonstrates a high degree of overlap, in any given lustrum period. With one exception, TCE is the most popular for all journal groups for all periods and of the 17 different theories identified, only four have been applied by just one journal group. Thus, we conclude that PSM research is characterised by ‘unity in diversity’: “E Pluribus Unum”, and offer recommendations how this multi-disciplinary composition of the field can be leveraged in future research.     

The effect of institutional pressure on cooperative and coercive ‘green’ supply chain practices

Little is known about buyers׳ decisions to implement ‘green’ supply chain management (GSCM) through either coercive or cooperative approaches. This is an important area of study as buyers are increasingly expected to improve and ensure that their purchasing and supply chain practices are environmentally sound. Pressuring and monitoring suppliers to become more environmentally responsible dominates the coercive approach to GSCM. In contrast, a cooperative approach is associated with training and helping suppliers to become ‘greener’. In this study we draw on institutional theory, and argue that the decision to implement such practices and the choice between them will be contingent upon institutional pressures (mimetic, normative and coercive), and downstream customer requirements for GSCM. Using primary survey data from 198 UK-based companies, we find compelling evidence to suggest that coercive and cooperative GSCM practices are driven by substantially different factors. Institutional pressures significantly determine cooperative approaches to GSCM while coercive practices are, to a larger extent, driven by downstream customer demands. Customer pressure is also found to moderate the influence of institutional factors on cooperative practices; no significant effect was found for coercive practices.     

Change within purchasing and supply management organisations – Assessing the claims from maturity models

It is a wide-held assumption that professional development and change within purchasing and supply management (PSM) organisations can be explained and guided by a maturity model. In this paper the guidance which the maturity model concept offers to understand a PSM organisation's performance is assessed. The methodology is based on the outcomes of a literature review of PSM maturity models, development of an organisational change framework and the learning from three qualitative case studies. An alternative understanding of the development of the PSM organisation is offered through an organisational change framework, composing 1) movement transitions, 2) scalability of change, 3) acceptability of change, and 4) the substantive element of change. The research found that extant PSM maturity models are too rigid for PSM managers to apply, and although maturity models are commonly accepted in PSM literature, in practice, they may produce the opposite effect of what is promised. The PSM maturity models suggest that their application will lead to increased status and influence of PSM within the organisation; expectations that may not be met. PSM organisations’ change processes are subjected to a range of situational and contextual power relations which must be considered in order to advance the specific PSM organisation roles and responsibilities.     

Quality management practices and their relationship to buyer’s supplier ratings: a study in the Korean automotive industry

This research explores if quality management practices are different among suppliers whose performance is rated high, medium, or low by a common buying company and identifies which specific practices contribute to the differences. The entire population of first-tier suppliers to a Korean auto assembler was surveyed to measure use of quality management practices. Useable returns were received from 25% of the suppliers surveyed. To measure conformance quality and overall rating, suppliers were categorized into high, medium, and low performing groups based on the buying company’s data. Multivariate analysis of variance was done using general linear model (GLM-MANOVA) to explore differences in the high-, medium-, and low-performing supplier groups based on their use of quality management practices. No statistically significant differences were found when suppliers were categorized based on conformance quality. However, when categorized based on overall rating, the highest rated suppliers were found to emphasize process management and employee satisfaction to a greater degree than the lowest rated suppliers.     

Engaged Scholar(ship) in purchasing and supply management (PSM): Creative tension or squeezed in the middle?

Purchasing and supply management research influences practice through the advancement of knowledge and theoretical principles and is positioned as an academic discipline. For the individual researcher, it calls for skills and experience that can be associated with engaged scholarship. This paper explores tensions inherent in engaged scholarship, that arise during the quest to interact closely with professionals to ensure relevance and impact while living up to research quality criteria. The paper concludes that the individual researcher in a field such as PSM is easily left with guidelines that point in multiple directions regarding personal achievement and institutional merits.     

Assessment and selection of management consultants: A comparative cognitive study between small- and large-scale companies

This paper explores alternative ways of evaluating and ultimately hiring a generalist consultancy for short- and medium-term projects, and how this is shaped by the size of the clients’ company. What buying factors do managers of small and large firms have in mind when hiring consultants for their projects?Instead of employing surveys incorporating predefined buying factors based on what the researchers think would be important, a cognitive mapping methodology - the repertory grid technique - is applied to investigate the underlying phenomena. Using the repertory grid technique to draw mental models is a novel research technique within the supply management field. Recent behavioral supply chain management research found the behavior of managers to be critically influenced by mental models: the lenses through which managers perceive, simplify and interpret the world.Results show differences between the buying factors used in small- and large-scale companies: managers of large companies are more ‘reputation and outcome-oriented’ and managers of small businesses are more concerned with ‘how the services are rendered’. However, both constituents stressed the importance of expertise, quality and the relationship between the client and the management consultancy, although the character of such a relationship differed between small- and large-scale firms. Results also point out criteria that managers of small and large companies employ to discriminate between good and poor performing consultancies and to judge service delivery. The practical implications for both companies hiring consultancies and the consultancy companies are discussed. For consultancies, our findings can help tailoring their efforts to a differing clientele when marketing and selling their services. For companies hiring consultancies, fixating too much on particular buying factors may lead to biased decisions.     

Moving purchasing & supply management beyond a cost-focused identity

Practitioners and researchers recognize that purchasing and supply management (PSM) contributes value to business performance beyond reported cost reductions, though capturing and evaluating such contributions is often challenging. The goal of this research is to understand roadblocks impeding the recognition of PSM's contributions beyond cost reduction, and suggest potential solutions to these challenges. Social identity theory offers a conceptual framework to study PSM's self-identity and how it is perceived by others in the organization. Gaining acceptance for value-added metrics is critical to move perceptions of PSM's contribution beyond cost reduction and achieve its full potential. Social identity theory is used as a lens to assess the data and develop propositions. Using a qualitative interview method, the researchers identified important roadblocks hindering PSM's attainment of a broader value-based perception. PSM's identity is closely linked to cost-savings by itself, other functions and upper management. These perceptions are further reinforced by PSM through excessive cost reporting metrics. We provide two suggested solutions for PSM to expand its recognition beyond cost savings: 1) PSM must change its narrative and associated self-identity; and 2) PSM needs to develop metrics that are meaningful across multiple areas of the business.     

《采购与供应管理》课程教学改革研究

随着企业对采购认识的逐步深入,企业越来越重视采购的战略地位,对采购人才也提出了更多专业性要求。《采购与供应管理》课程重在培养学生对采购基础理论知识以及相关策略和技能的掌握和应用能力,基于该课程实践性强的特点以及社会对采购专业人才实践能力的要求,结合实际,在分析该课程教学中存在的问题基础上,有针对性地提出了以业务流程为主线优化课程体系等解决方案。     

How to train supply managers – Necessary and sufficient purchasing skills leading to success

The success of purchasing and supply management (PSM) largely depends on PSM professionals' skills levels. Past research assumed that one universal PSM professional type exists, and they have proposed one-size-fits-all PSM skillsets. However, PSM professionals have different objectives. Based on the data of an extensive survey conducted amongst European PSM professionals (n = 366), this study presents skillsets for seven objectives (reducing costs and improving delivery, quality, sustainability, strategic competitive advantage, supplier satisfaction and innovation). A differentiation is made between “necessary” and “sufficient” conditions for each objective's effectiveness. Within a new PSM-skills taxonomy, a hierarchy of skills is detected as one of the first categories that provide quantitative evidence that soft skills or personal skills are necessary conditions for carrying out hard skills or professional skills. Based on the proposed skillsets, university educators and firm trainers can draft teaching plans that support the intended outcome, while individual PSM professionals may get an orientation on how to develop their skills further.     

Managing the global supply base through purchasing portfolio management

‘How to source globally’ has become a critical strategic decision for companies competing on a global basis. Despite an increased focus on global sourcing and supply chain management, little is known about the challenges and solutions surrounding such sourcing practices. Extant literature points at the critical importance of developing and sharing knowledge in multinational companies (MNCs). However, little work has been undertaken to examine the organizational mechanisms used by MNC headquarters for knowledge leveraging across subsidiaries, especially in the area of purchasing and supply management. Based on an in-depth case study, focusing on a chemical company, the actual buying systems for managing the global supply base are explored. Kraljic's purchasing portfolio approach appears useful, both for developing effective purchasing strategies as well as for managing a global supply base.