Management and Marketing - Research Publications
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ItemThe Application of Graph Theory for Vulnerability Assessment in Service Triads(Academy of Management, 2017-08)A supply chain triad is increasingly regarded as a unit of analysis of complex supply chain networks, allowing the realization of properties such as certain risks manifesting at the level of supply chain networks, and which are not necessarily observed at the level of supply chain dyads or individual supply chain partners. This study investigates a type of supply chain triad - service triads - and explores cross- organizational pathways according to which risks can emerge and propagate within such triadic structures. The aim of the study is to design an analytical model with the view to facilitate the assessment of vulnerability in service triads according to the aforementioned cross-organizational pathways of risk emergence and propagation. Using graph theory, a range of service triad reference models are developed, which formalize the typology and direction of the relationships between members of the supply chain triad. Adopting the notion of matrix permanent allows calculating the vulnerability levels of distinct service triad models, accounting for the formalized typology and direction of the relationships within the models. A case study in a corporate bonds context is conducted to illustrate the applicability of the proposed approach to vulnerability assessment in the service industry context.
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ItemToward a Comprehensive OSCM Research Methodology: The Role of Design Science(Academy of Management, 2017-08)Research in Operations and Supply Chain Management (OSCM) field is widespread and applied to various sectors of industry and services. Despite its benefits, the diversity of the worldviews of OSCM research applications and the preferences regarding the choice of methodologies by the researchers sometimes cause unnecessary complexities in converging these efforts toward advancing theory and practice. It has been argued that the application of multi-methods could facilitate obtaining a common ground through which OSCM researchers could make more effective and robust contributions in binding theory and practice. There is, however, a lack of a unifying research methodology so that OSCM research could effectively link between theory and practice and move toward more coherence of research in the OSCM field. In this article, we introduce the application of design science research methodology and the use of multi-methods approach in this methodology to draw a road map for more coherent future research attempts in the domain of OSCM. As an example, the behavioral causes of the bullwhip effect are examined and illustration is made on how the dispersed but growing research efforts in this area could be aligned into drawing a behavioral theory of the ordering preferences of decision makers in supply chains and in organizations.