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Purpose – This paper aims to analyze the influence of power on the depth of collaboration by discussing the power relations and collaborative relationships between buyers and suppliers in networks. The aim is to shed light on how power position in a network influences the depth of collaboration. Design/methodology/approach – The study utilizes a case research as a method and analyzes a network from the Finnish food industry. The empirical data comprises 29 semi-structured interviews conducted among the personnel of four case companies. Findings – The findings of the study suggest that the network actors' power relations affect the form of the relationships. It seems that power influences the depth of collaboration, which is minimal if the actors do not have balanced power positions. Highlighting the importance of the network context, the results also indicate that the role and position in the network may crucially determine the character of the power relations if the actors are otherwise in balanced positions. Practical implications – The results have implications for purchasing and supply chain managers and practitioners in terms of shedding light on the relation between power and collaboration. It enhances understanding of how power influences collaboration, and of how a wider network perspective could determine the power relations between the companies. Managers need to be aware of the effects of power on the nature of their relationships and, moreover, on the depth of collaboration. This enhances their ability to determine their positions in relation to other companies, and to develop relationships offering opportunities for deeper collaboration. Originality/value – The literature review reveals that the issues of power and collaboration in the network context have rarely been connected and discussed in relation to each other. This constitutes a clear and notable research gap given the implication that the relation between power and collaboration, in terms of the influence of power position, is still an unexplored area. Moreover, whereas most previous studies on the phenomenon of power concentrate on analyzing dyadic relationships, this study raises the question of the network context.

Purpose This study aims to investigate the role of sustainable supply management (SSM) practices in a firm’s overall sustainability performance and reflect the significance of supply management in this performance. The paper uses dynamic capability view as a theoretical foundation for the research of SSM practices and differentiates between reactive and proactive practices. Design/methodology/approach The research design includes a focus group session with nine supply management professionals and survey data collected from 111 companies. The research objectives are examined by means of quantitative analyses. Findings The empirical results show that SSM practices represent a significant share of the firm’s sustainability performance overall. However, the significance of the practices differs depending on the strategic type and importance of the practice. SSM practices reflecting reporting and upstream SCM activities aim to ensure sustainability of the entire supply chain and have a focal role in improving firm’s sustainability performance. Originality/value A three-dimensional matrix for the categorization of SSM practices is proposed. This is a novel theoretical contribution to the SSM literature. Reactive practices are basic ones where the strategic importance regarding the development of new capabilities is low. Proactive practices are dynamic in nature and aim toward the development of new capabilities. Thus, proactive practices have a long-term effect and are necessary for gaining higher sustainability performance.

PurposeManaging supply chains (SCs) for sustainability often results in conflicting demands, which can be conceptualized as sustainability tensions. This paper studies sustainability tensions in electronics SC contexts and the related management responses by applying a paradox perspective.Design/methodology/approachA single case study on the electronics SC is conducted with companies and third-party organizations as embedded units of analysis, using semi-structured interviews that are triangulated with publicly available data.FindingsThe study identifies tension elements (learning, belonging, organizing and economic performing) conflicting with general social–ecological objectives in the electronics SC. The results indicate a hierarchal structure among the sustainability tensions in SC contexts. The management responses of contextualization and resolution are assigned to the identified tensions.Practical implicationsFraming social–ecological objectives with their conflicting elements as paradoxical tensions enables organizations and SCs to develop better strategies for responding to complex sustainability issues in SC contexts.Originality/valueThe study contributes toward filling the gap on paradoxical sustainability tensions in SCs. Empirical insights are gained from different actors in the electronics SC. The level of emergence and interconnectedness of sustainability tensions in a larger SC context is explored through an outside-in perspective.

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This paper highlights the role of green supply management in the development of a sustainable supply chain. It examines if supply risks, supplier relationship management capability, and end‐customer orientation of supply management function are connected to the green supply management practices of a firm. These connections are studied using a survey data of 165 firms collected in Finland. The results of regression analysis show that the protection of a firm's reputation is highly related to the level of green supply management; consumer awareness of green requirements puts strong pressure on a firm's supply management to meet the end‐customers' expectations, and the high the level of supplier relationship management capability in firms increases the adoption of green supply management. Furthermore, it finds that larger firms exploit green supply management practices more than the smaller ones, and green purchasing activities are not applied in high‐volume‐buying Finnish companies. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment

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