Last mile delivery in logistics and supply chain management: a bibliometric analysis and future directions

Purpose The main objective of this paper is to provide a systematic literature review (SLR) and structured insight into last mile delivery, ultimately identifying gaps in current knowledge and proposing a framework for future research direction in terms of sustainability in the area. Design/methodology/approach This paper identifies and synthesizes information from academic journals and examines "Journals and Publishing place," "Geographic location," "Year of Publication," "University and Author Affiliation," "Themes and Sub-themes," "Theory," "Research Design, Methods and Area" and "Industry Involvement." A collection of online databases from 2005 to 2020 were explored, using the keywords "Last mile delivery," "Last mile logistics," "Last mile transportation," "Last mile fulfillment," "Last mile operations" and "Last mile distribution" in their title and/or abstract and/or keywords. Accordingly, a total of 281 journal articles were found in this discipline area, and data were derived from a succession of variables. Findings There has been significant growth in published articles concerning last mile delivery over the last 15 years (2005-2020). An in-depth review of the literature shows five dimensions of the last mile: last mile delivery, transportation, operations, distribution and logistics. Each of these dimensions is interrelated and possess clustered characteristics. For instance, last mile operations, last mile transportation and last mile delivery are operational, whereas last mile distribution is tactical, and last mile logistics possess strategic characteristics. The findings also indicate that even though the sustainability concept can be incorporated into all levels of the last mile, the current literature landscape mainly concentrates on the operational level. Research limitations/implications This review is limited to academic sources available from Emerald Insight, Science Direct, Taylor and Francis, Springer, MDPI and IEEE containing the mentioned keywords in the title and/or abstract/or keywords. Furthermore, only papers from high-quality, peer-reviewed journals were evaluated. Other sources such as books and conference papers were not included. Practical implications This study dissects last mile delivery to produce a framework that captures and presents its complex characteristics and its interconnectedness with various related components. By analyzing last mile delivery in its entirety, the framework also helps practitioners pinpoint which levels of last mile delivery (operation, tactical or strategic) they can incorporate the concept of sustainability. Originality/value The research findings enrich the contemporary literature landscape and future work by providing a conceptual framework that incorporates the "economic," "environmental" and "social" pillars of sustainability in all dimensions of the last mile delivery.