1. What are the contributions in "Sustainable supplier selection in the logistics industry: a comparison of alternative approaches" ?
One group of suppliers with a crucial role in any chain is the group of logistics service providers that need to be evaluated and selected based on all three lines of sustainability, i. e. economic, environmental, and social competencies.. This study aims at comparing the outcomes of these three methods based on a common data set.. The comparisons are illustrated with an empirical application for measuring the sustainability of a set of logistics service providers.. In other words, this study sheds light on the aspect regarding the extent to which the outcomes of these methods are reliable for making strategic decisions in a supplier management system.. The results reveal that each method produces a unique ranking of the logistics service providers under evaluation.. Furthermore, the comparison between AHP and DEA shows that each method provides a different benchmarking strategy for suppliers that need to improve their performance.. Of course, considering the outcomes of only one method is not reliable, but the buying company can create a network of top suppliers based on the outcomes of each method and then further analyse their performance for the final decision.
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2. What is the main reason why the need for reliable and verified information has emerged?
As a consequence of outsourcing activities to increase sustainability performance, the need has emerged for reliable and verified information in different links within a supply chain.
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3. What are some of the key operations within a supply chain management system?
procurement, marketing and sales, logistics, finance, and R&D are some of the key operations within a supply chain management system (Lambert & Cooper, 2000).
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4. What is the main reason why the top performers need to continuously enhance their capabilities in terms of sustainability?
Being that sustainability efficiency is an unbounded approach, and there is no best perfect performance of it, the top performers also need to continuously enhance their capabilities in terms of sustainability.
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