Logistics research is an
interdisciplinary subject which stems from various scientific traditions. With the
introduction of terminologies such as ‘value-chain’, logistics has grown out of the
physical distribution, transportation and inventory research boundaries and it has
welcomed other concepts such as causality of behaviour activities and social science
researches (Porter, 1985). Therefore, with the emergence of these concepts, the
identification of appropriate research design is needed to structuralise and conceptualise
the newly evolved disciplines of logistics and transport research (Yin