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.     

Partnering in the construction industry—Problems and opportunities

During recent years partnering has been on the top of the management agenda in the construction industry. Despite this attention there is limited and partly contradicting evidence of the impact of these efforts. The objective of this literature-based paper is to explore why it has been difficult to realise potential partnering benefits on the strategic level, while partnering in individual projects has improved construction performance. The analysis builds on a comparison of the features of business relationships in construction with the characteristics of so called ‘high-involvement relationships’ based on close cooperation. It is concluded that prevailing supply arrangements established to handle the particular conditions in the construction industry makes it unlikely for partnering to reach outside the individual project. Taking the step to strategic partnerships would require modification of some of the basic assumptions and norms of industry efficiency. On the basis of this analysis we explore potential consequences of modifications of current behaviour with respect to decentralisation and competitive tendering. The paper is finalised with a suggestion for a differentiated approach to partnering.     

The boundary spanning capabilities of purchasing agents in buyer-supplier trust development

This study examines how individual purchasing agents function as boundary spanners with suppliers to influence trust development in themselves and the buying firms that employ them. Building upon boundary theory and supply chain cooperation research, we identify three boundary spanning capabilities of purchasing agents and empirically test how these capabilities shape buyer-supplier trust development. Using two samples of data collected from suppliers in the automotive industry and food industry, we found that a purchasing agent's effectiveness in strategic communication with suppliers affects a supplier's trust in the buying firm, while an agent's professional knowledge and ability toreach compromises with suppliers affect a supplier's trust in the purchasing agent representing the firm. Trust in the purchasing agent in turn affects trust in the buying firm. Theoretical and managerial implications are discussed.     

International purchasing offices: Literature review and research directions

International Purchasing Offices (IPOs) now play an increasingly important role in the management of international sourcing activities, both in developed and emerging economies. The relevance of this organisational solution and the relatively limited research that has been published so far in the P&SCM literature make the “IPO” topic particularly promising for future research. This paper – based on an analysis of 59 works published between 1991 and 2011 – provides the first comprehensive literature review and research agenda on this topic. The primary issues (i.e., IPO definition, activities, location choices, strengths, weaknesses, and human resources management) are identified, and a conceptual framework is proposed. Building on this analysis, some theoretical and methodological weaknesses of the existing works and some gaps in the literature are discussed. This work concludes by suggesting several future research directions.     

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.     

Strategic supply management: The relationship between supply management practices, strategic orientation and their impact on organisational performance

A theoretical model is presented for conceptualising the relationship between the management of supply, strategic orientation at the business-unit level and their proposed link with firm performance. The shortcomings of existing approaches in accounting for the wide variety of purchasing practices in a comprehensive supply management framework are discussed as well their alignment with strategic orientation. The paper concludes by presenting a model and propositions concerning firm-level supply management, strategic orientation and firm performance.     

The purchasing department's leadership role in developing and maintaining a preferred customer status

Developing and maintaining a preferred customer status is one of the main objectives of organizations that want to obtain a better access to supplier's information, resources, and innovation. This paper addresses the extent and the nature of the purchasing department's leadership role in the process of developing and maintaining a preferred customer status. A qualitative exploratory approach based on eleven cases has been used in order to take into consideration the context specific to the buyer-supplier relationship in a preferred customer scenario.Our study shows that the purchasing department performs four main categories of roles: (1) identifies and selects the best supplier, (2) structures and segments the supply base, (3) builds close relationships with selected suppliers and (4) develops working relationships, using an effective communication. Each of these roles is related to three key components of the purchasing department's capabilities: boundary, relational, and coordination. These four categories of roles illustrate supply's ability to recognize and understand the specifics of the preferred customer situation. Based on our analysis, the purchasing department should be viewed as extending an organization's resource base, making the organization more competitive.Our analysis also shows that the purchasing managers' leadership is critical for the development and the coordination of activities with selected suppliers, as well as proper communication with them. Specifically, the purchasing manager's transformational leadership generates more internal user and supplier involvement through the creation and articulation of a common vision, by establishing shared goals with other organizational units, and by focusing on activities that benefit the organization; this allows to move from initiative-driven efforts to an “institutionalized preferred customer status management” in the organization.     

Selecting the portfolio investment strategy under political structure change in United States

This paper investigated whether stock market returns and volatilities were induced by change of long-term political structure. The empirical study finds that the political change is a crucial variable to DJIA and S&P 500 stock returns, but is insignificant to volatilities. But after the 1987 Crash, the political change has a positive effect on DJIA stock returns, and reduced the risk of DJIA and S&P 500. When political structure change, significant economic policies must submit to political realities and those proposed by previous governments often do not get implemented, resulting in market confusion. But following the increasing the consummation of market structure during post-1987 crash, hence, the political change effect increased DJIA stock returns, and reduced the risk of DJIA and S&P 500, and therefore the investors might be able to make a profit when they took active portfolio positions of DJIA.     

Mobilising supplier resources by being an attractive customer: Relevance,status and future research directions

For buying companies, supplier resource mobilisation is an essential process in gaining and sustaining preferential access to supplier resources. This editorial provides insights into the processes of supplier resource mobilisation and introduces three empirical studies on supplier resource mobilisation. We first introduce the supplier resource mobilisation cycle. This cycle may serve as a roadmap for purchasing and supply management (PSM) practitioners seeking to improve access to supplier resources. In addition, this article informs PSM scholars about the status of the supplier resource mobilisation literature and proposes avenues for future research. The cycle includes six stages: (1) becoming an attractive customer, (2) segmenting suppliers, (3) generating supplier satisfaction, (4) becoming a preferred customer, (5) engaging in supplier-oriented actions, and (6) integrating supplier resources. Finally, we introduce the articles in this issue that each examine a different stage of the supplier resource mobilisation process.     

A test for the weights of the global minimum variance portfolio in an elliptical model

In this paper we consider the weights of the global minimum variance portfolio (GMVP). The returns are assumed to follow a matrix elliptically contoured distribution, i.e., the returns are assumed to be neither independent nor normally distributed. A test for the general linear hypothesis is given. The distribution of the test statistic is derived under the null and the alternative hypothesis. It turns out that its distribution is invariant with respect to the type of the matrix elliptical distribution, i.e., the stochastic properties of the GMVP do not depend either on the mean vector or on the distributional assumptions imposed on asset returns. In an empirical study we analyze an international diversified portfolio.     

The theory and practice of strategic HRM and participative management: Antecedents in early industrial relations

A diversity of opinion exists about the definition, intellectual boundaries, and major premises of the fields of human resources management (HRM) and industrial relations (IR). To help provide a common frame of reference for discussion and debate on the symposium topic, I endeavor in this paper to flesh out a consensus position on these matters. The method used is largely historical. Based on a review of the origins and evolution of the two fields from the early 20th century to the present day, I show that human resources (HR) up to the early 1960s was typically considered to be a subfield of IR. In more recent years, however, HR has largely severed its links with IR and now is widely regarded as a separate, sometimes competing and sometimes complementary field of study. In the last part of the paper I use this historical analysis, together with a review of the literatures in the two fields and the findings and conclusions of the other papers in this symposium, to identity both the commonalities and differences that distinguish the two fields in terms of their approach to science building (research) and problem solving (policy/practice).     

Project portfolio control and portfolio management performance in different contexts

This article investigates the nature and relationship of project portfolio control techniques and portfolio management performance, and how this relationship is moderated by situational idiosyncrasies of internal and external dynamics, industries, governance types, and geographic location. A worldwide questionnaire with 242 responses was used, of which 136 high‐performing responses were filtered out for quantitative analysis of best practices. Three portfolio control factors were identified: portfolio selection, portfolio reporting, and decision‐making style. Two measures for portfolio management performance were identified: achievement of desired portfolio results and achievement of project and program purpose. The results indicate that different portfolio control mechanisms are associated with different performance measures. A contingency model was developed, including moderating effects by contextual variables.     

提升企业“软实力”——战略公关模型构建与解析

本文重新构建了企业“软实力”的四力结构模型,将企业“软实力”归结于形象影响力、资源整合力、文化制导力以及环境应变力,从多个角度对提升企业“软实力”的途径进行了全面分析和解读,提出了战略公关理念并界定了战略公关框架的四个维度,对机制管理、形象管理、策略管理、绩效管理进行了分析。     

Gaining from disorder: Making the case for antifragility in purchasing and supply chain management

The purchasing and supply chain management (P&SCM) discipline assumes that supply chains are fragile systems, hence taking a “negative” approach toward disorder. Building on Taleb’s concept of antifragility—the ability to gain from disorder rather than avoiding it—, we challenge this traditional assumption. The COVID-19 pandemic has revealed that some companies were indeed able to gain from disorder, whereas some of those that focused too much on robustness and resilience lost ground. Building robust and resilient supply chains may no longer be enough to thrive in today’s highly volatile business world. This article sparks a new debate by introducing antifragility to the P&SCM literature and provides new directions for future research.     

Robust min–max portfolio strategies for rival forecast and risk scenarios

We consider an extension of the Markowitz mean–variance optimization framework to multiple return and risk scenarios. It is well known that asset return forecasts and risk estimates are inherently inaccurate. The method proposed provides a means for considering rival representations of the future. The optimal portfolio is computed, simultaneously with the worst case, to take account of all rival scenarios. This is a min-max strategy which is essentially equivalent to a robust pooling of the scenarios. Robustness is ensured by the noninferiority of min–max. For example, a basic worst-case optimal return is guaranteed in view of multiple return scenarios. If robustness happens to have too high a cost, guided by the min–max pooling, it is also possible to explore other pooling alternatives. A min–max algorithm is used to solve the problem and illustrate the robust character of min–max with return and risk scenarios. We study the properties of the min–max risk–return frontier and compare with the potentially suboptimal worst-case where the investment strategy and the worst case are computed separately.     

What project strategy really is: The fundamental building block in strategic project management

Strategic project management is gradually becoming a popular and growing trend within the discipline of project management. The general idea is that project management teams must learn how to deal with the business aspects of their projects, as well as better support their company's business strategy and sustainability, rather than just focus on meeting traditional time, budget, and performance goals. Although this approach has been gaining popularity, strategic project management has not yet become an explicit and widely used approach in the practice of project implementation. One of the concepts mentioned as an important element is project strategy; however, no universal framework or even a clear definition of what project strategy is has so far emerged. The goal of this article is to fill in this gap and provide a useful definition and a framework for the further study and implementation of the project strategy concept. Specifically, to achieve this goal, we first look at the origins of strategy in military and business research to discuss the question of what, exactly, project strategy is; we follow this discussion with an explicit definition of a project strategy. We then outline a framework for building a dedicated project strategy document for an individual project, and show how this framework can guide the project planning and execution processes. Using a case study approach, which included an action research phase, we demonstrate how project teams can adopt the strategy concept in a natural way that would lead their project to better business results.     

浅析管理沟通在员工关系管理中的作用及应用

现代社会中较物质资本而言,人力资本在经济活动中更活跃更具发展特性,从而使其成为现代经济增长的主要因素,甚至是首要因素。随着企业竞争的日益激烈,如何留住、用好人才,已成为人力资源管理面临的重大挑战。由此员工关系管理的重要性和必要性越来越凸显出来,在一定程度上,我们甚至可以说员工关系管理的和谐与否决定着企业经营的成败。     

Supplier development and cost management in Southeast Asia—Results from a field study

This paper is about supplier development when international companies have production sites in Southeast Asia and look for opportunities to switch from international suppliers to local suppliers. We conducted a field study involving site visits to companies in Thailand and Vietnam, and interviews at corporate supply chain departments. Some key observations are: cost management was a dominant motive for taking local supplier development initiatives. Furthermore, local sourcing and local supplier development were important for international companies to improve access to local customer markets. Firms deliberately assessed whether a particular supplier would likely be able to improve sufficiently to warrant investing in supplier development, which typically involved a combination of initiatives, requiring the international firm to take considerable efforts. Local sourcing strategies and priorities for supplier development initiatives tended to focus on items with low supply risk and low volume. These findings are discussed based on transaction cost economics, and we suggest that firms use several ways to reduce the risk of transaction-specific investments in supplier development initiatives.     

Evolving Purchasing and Supply Organizations: A contingency model for structural alternatives

Purchasing and Supply Management (PSM) is under significant pressure to find levers to further increase its contribution to corporate goals. In order to improve performance in line with expectations, Purchasing and Supply Organizations (PSOs) have to evolve continuously. To help address this challenge, a comprehensive contingency framework of PSO structures is presented. The framework is based on existing literature on PSO contingency factors as well as analysis of two case companies. The findings highlight the importance of taking a contingency perspective for understanding the PSO and combining a detailed view of macro-level structural dimensions with micro-level characteristics. These macro-level dimensions comprise category, business unit, geography and activity. The micro-level characteristics comprise centralization, formalization, specialization, participation and standardization. From a theoretical perspective, the contingency framework opens up insights that can be leveraged in future studies in the fields of hybrid PSOs, global sourcing organizations, and International Purchasing Offices (IPOs). From a practical standpoint, an assessment of external and internal contingencies and their relation to specific structural dimensions and characteristics provides the opportunity for more consciously evolving the PSO to continue to improve PSM's contribution.