PurposeA growing body of literature has begun to recognise that in the era of supply chain management it is important to look beyond the flexible factory to the flexible supply chain. This paper seeks to further our understanding of supply chain flexibility and provide a comprehensive review of the available literature.Design/methodology/approachPublished literature on supply chain flexibility has been considered. Where appropriate, additional insights have been obtained from related streams such as manufacturing flexibility, agility and supply chain responsiveness.FindingsMuch of the existing research has a limited definition of supply chain flexibility and describes flexibility simply as a reactive means to cope with uncertainty. Supply chain flexibility has emerged from the manufacturing flexibility literature and hence to date is largely confined to a manufacturing context (neglecting the role of services). Empirical research often takes the form of a cross‐sectional postal questionnaire conducted at the firm‐level that fails to explore the inter‐organisational components of supply chain flexibility.Originality/valueThe paper presents a timely review of the available literature and provides a more complete definition of flexibility in the context of supply chains. It is argued that future empirical research should approach research design from a network perspective, treating the supply chain as the unit of analysis, in order to develop a more complete understanding of the effects of flexibility across the whole supply chain. The paper also explores combining a flexible supply chain strategy with proactive means of reducing unwanted supply chain uncertainty, focusing on the roles of supply chain design, supply chain collaboration and inter‐organisational information systems.

PurposeTo provide a taxonomy of third party logistics (3PL) research and, based on that, to develop a research agenda for this field of study.Design/methodology/approachThe proposed 3PL research classification framework is based on a comprehensive literature review, which concentrates on peer‐reviewed journal papers published within the period 1990‐2005. A total of 114 academic sources have been retrieved and analysed in terms of research purpose and nature, method employed, theoretical approach and level of analysis.FindingsThe review reveals that 3PL research is empirical‐descriptive in nature and that it generally lacks a theoretical foundation. Survey research is the dominant method employed, reflecting the positivist research tradition within logistics. It identifies certain knowledge gaps and develops five propositions for future research. It suggests that focus should be directed towards more normative, theory‐driven and qualitative method‐based studies. It also argues that further empirical research in relation to 3PL design/implementation and fourth party logistics services is needed.Originality/valueThis paper fulfils an identified need for a comprehensive classification framework of 3PL studies. It essentially provides both academics and practitioners with a conceptual map of existing 3PL research and also points out opportunities for future research.

Service triads, in which a buyer contracts with a supplier to deliver services directly to the buyer's customer, represent an emerging business model. This special issue is dedicated to this theme. To set the context, in this lead article, we first define service triads, both as a phenomenon and a research topic. We then provide a review of different strands of existing research and various theoretical frameworks that can inform our study of service triads. This culminates in an outline of a research agenda that can guide future study. As such, this paper not only introduces the articles in the special issue, but is also intended as a point of reference and motivation for further work on service triads, and on triads in general.

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Purpose-This paper proposes a new approach to operations and supply strategy in the light of recent developments in the analysis of the respective roles of products and services in delivering benefits to customers. Design/methodology/approach-Reviews and synthesises concepts from operations management (OM), marketing, economics and related areas. Examples of product and service combinations are considered, drawing attention to the ways in which services may be distinguished from products. An institutional basis for defining services is favoured over IHIP. A corollary of this is how services are made tradable: the modularity theory of the firm is used to do this. The paper then outlines, considers and compares various approaches to the combination of products and services: "service-dominant logic", support services, product-service systems, systems integration, performance-based logistics, bundling and, finally, the notion of "the offering". Findings-It is found that the notion of the business model is useful as an integrating concept. This focuses on four areas: network structure, how transactions are made, how revenue models and incentives interact and how capabilities are accessed. Implications for future research in OM are considered. Research limitations/implications-Hitherto, operations strategy (OS) has concentrated on intra-firm capabilities, which is only part of one of the four areas identified. Therefore, an extensive agenda for research into inter-firm capabilities and the other three areas identified is presented. Originality/value-This is among the first papers in OM to break completely with IHIP as a basis for service definition and to work through the implications for OS. It is also the first to develop systematically an understanding of how the emerging concept of the business model can inform OM.

This article conceptualizes service supply chains according to the Unified Service Theory, which defines services as bidirectional supply chains that have customers both providing resources to and receiving resources from service providers. We establish how eight traditional roles in manufacturing supply chains are assumed by customers in service supply chains. Those service–customer roles include component supplier, labor, design engineer, production manager, product, quality assurance, inventory, and competitor. We describe how these eight roles are manifested in both business‐to‐consumer and business‐to‐business service contexts. We confirm the distinctiveness of these eight customer roles through an initial empirical study and show how the roles are manifested across different types of services. We then demonstrate how these distinctive customer roles can form the basis for service supply chain innovation.

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Deciding on the number of respondents in a data-collection instrument is a key design consideration requiring supply chain researchers to balance multiple competing factors. The debate on this respondent design question may unintentionally disregard over 95% of enterprises engaged in supply chains: small and medium enterprises (SMEs). We present arguments for why single-respondent designs can be more appropriate in the SME setting, particularly when considering the various facets of supply chain management and the untapped potential of SCM-SME research. Assuring that SCM theoretical frameworks and research designs allow for SME inclusion will be important in aiding the SCM field to progress forward.