Browsing by Author "Prabodhika, A. P. K. J."

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Framework for Measuring Sustainability Performance of Logistics Service Providers- A Systematic Review of Literature
(Faculty of Commerce and Management Studies University of Kelaniya, Sri Lanka, 2020) Prabodhika, A. P. K. J.; Niwunhella, D. H. H.; Wijayanayake, A
Sustainability and sustainable development have become a buzzing topic in today's business world. Business organizations are more inclined towards making themselves economically, socially, and environmentally more sustainable. With the introduction of concepts like “Sustainable Supply Chain Management” organizations have determined to not only make themselves sustainable but to make the whole supply chain sustainable as well. As part of the supply chain, Logistics Service Providers (LSPs) are no exception. With the pressure from the internal and external stakeholders such as Government, Non- Government Organizations (NGOs), public authorities, LSPs are more inclined towards making themselves more sustainable and ‘being sustainable’ has become a competitive advantage for them now. To measure and evaluate the sustainability performance, various frameworks and standards have been introduced. This paper reviews the available literature from 2010 to 2019 under logistics service providers, sustainability, and sustainability performance evaluation. This study was conducted through a systematic review of the literature and presents various sustainability indicators used by researchers, sustainability performance evaluation models, and frameworks and the approaches used by researchers in developing those models and frameworks for the logistics service providers and the supply chain as a whole. The review brings up the importance of further analyzing and testing those proposed models and frameworks using case studies and the need for incorporating opinions of stakeholders when developing the models for the evaluation of sustainability performance and frameworks.
Model to optimize the quantities of delivery products prioritizing the sustainability performance
(Department of Industrial Management, Faculty of Science, University of Kelaniya Sri Lanka, 2021) Prabodhika, A. P. K. J.; Niwunhella, D. H. H.; Wijayanayake, A. N.
Many manufacturers and retailers often outsource their logistics functions to Logistics Service Providers (LSPs) to focus more on their core business process. Due to the competitiveness and the popularity of the sustainability concept, those organizations evaluate their prospective LSPs not only based on economic aspects like cost, service quality but also on social and environmental aspects as well when selecting LSPs. This paper proposes a methodology that can be used by organizations when evaluating and selecting LSPs based on their sustainability performance. Analytic Network Process (ANP) is used in evaluating the LSPs’ sustainable performance since multiple dimensions and indicators need to be incorporated when measuring the sustainability performance. A Linear Programming Problem (LPP) model was proposed which allows the organizations to decide both desired number of LSPs and the volume to be allocated for those selected LSPs. The proposed methodology is flexible as it depends on the sustainability requirements of the organization when selecting LSPs. Both the indicators and their relative importance are up to the organization to decide.
Selecting the best logistics service providers by evaluating the sustainability performance using AHP and linear programming problem
(International Journal of Business Performance and Supply Chain Modelling, 2022) Prabodhika, A. P. K. J.; Wickramarachchi, A.; Niwunhella, D.; Wijayanayake, A.
Many manufacturers and retailers often outsource their logistics functions to logistics service providers (LSPs) to focus more on their core business process. Due to the competitiveness and the popularity of the sustainability concept, those organisations evaluate their prospective LSPs not only based on economic aspects but also social and environmental aspects. This paper proposes a framework that can be used by organisations when evaluating and selecting LSPs based on their sustainability performance. A composite sustainability performance index (CSPI) is constructed, incorporating multiple dimensions and indicators related to economic, social, and environmental aspects, which are widely used to measure sustainability performance. A linear programming (LP) model is then proposed, which allows the organisations to decide the desired number of LSPs after considering all requirements and limitations. The proposed framework is flexible as it depends on the sustainability requirements of the organisation when selecting LSPs.