Drivers of supply chain vulnerability: An integrated framework

Abstract

Purpose – This paper aims to report on findings of a cross-sector empirical study of the sources and drivers of supply chain vulnerability. Design/methodology/approach – The research was undertaken in accordance with the realist tradition. It begins with a descriptive exploratory stage involving an in-depth exploratory case study of aerospace industry supply chains, validated through in-depth interviews with managers representing other “critical sectors” of the UK economy. This is followed by an explanatory theoretical stage. The work is supported throughout with reference to relevant literature sources. Findings – The findings highlight the absence of any widespread understanding of the scope of and dynamic nature of the problem, which should be considered from multiple perspectives and at four levels of analysis: value stream/product or process; asset and infrastructure dependencies; organisations and inter-organisational networks; and social and natural environment. Research limitations/implications – The paper is normative rather than positive, so focuses on understanding why supply chains are vulnerable to disruption, rather than presenting itself as a prescription for management. The paper does not investigate academic definitions or existing taxonomies of risk. Practical implications – The work provides some useful insights for practising managers and policy makers. Originality/value – The paper reports on empirical research, then draws as appropriate on network theory and complex systems perspectives to produce a conceptual model of a supply chain as in interactive adaptive system. © 2005, Emerald Group Publishing Limited