Logistics capabilities are key to sustainable supply chain project management, but there is insufficient agreement regarding the most important logistics capabilities and how these are interrelated. To this end, we propose a holistic fuzzy MCDM framework for discovering, evaluating and categorizing sustainable logistics capabilities. Based on the Resource-Based View and Dynamic Capability Theory, a primary list of 20 logistics capabilities was discovered by conducting an exhaustive literature review. Expert consensus was used to reduce the list to the 11 critical capabilities by using the Fuzzy Delphi. Then the fuzzy DEMATEL was used to investigate causality and to categorize capabilities into the cause group and the effect group. The results indicate that digital integration, supply chain agility, information sharing and kaizen are the main causes of drivers’ capabilities and green warehousing, resilience recovery capability, trust-based relationships and green innovation are effective capabilities. This illustrates the interconnected nature of sustainable logistics capabilities and the need for dynamic and information-dependent enablers. Theoretically, this study makes a contribution by explaining the causal design of logistics capabilities, and managerially provides insights to those who are in charge of prioritizing logistics capability development for cleaner and more resilient logistics systems and sustainable project outcomes.

Vendor-managed inventory (VMI) is one of effective and crucial tools to alleviate the demand volatility of stocks problems, reduce time and operating cost in healthcare sector. VMI strategy becomes a necessity for both suppliers and hospitals to sustainably develop and to cope with stock availability and overall reliability process by sharing information. The process and management of VMI is a complicated work which needs substantial degrees of collaboration, expertise, and information sharing. This paper purposes a comprehensive multi-criteria decision making (MCDM) to select the best potential supplier for VMI collaboration in healthcare organization. The study developed MCDM framework consists of (i) Fuzzy Delphi approach to select the appropriate evaluation criteria for VMI supplier selection (ii) Fuzzy Step-wise Weight Assessment Ration Analysis (SWARA) method to determine the relative importance weight of evaluation criteria, (ii) Fuzzy Complex Proportional Assessment of Alternatives (COPRAS) to compare, rank and select the best appropriated supplier. An empirical case study was applied for a local famous public hospital and the best potential supplier was selected. The study reveals that the most evaluation criteria when selecting supplier for VMI in healthcare sector are institutional trust, information sharing and exchanging as well as information technology.

In today's competitive world, Six Sigma can serve as a corporate strategy to improve quality and reduce costs. Six Sigma is a comprehensive and flexible system for achieving, maintaining and maximizing organizational success, through an improved performance of processes. However, this tool can only be successful in organizations which are already prepared for Six Sigma implementation. This study investigated the readiness of an Iranian company, Tabarestan Steel Co., in terms of Six Sigma projects. In doing so, the study proposed a model designed for assessing the readiness of Six Sigma in organizations. To this end, primarily Six Sigma readiness indicators were identified through Fuzzy Delphi, by recourse to the experts’ opinions. Next the interrelationships between the indicators were examined through the Fuzzy DEMATEL method. The internal links between the indicators were determined after the examination, and the degree of importance and the weights of the indicators were decided. Ultimately, three highly important dimensions were discovered that had a significant function in Six Sigma implementation (leadership and perspective, corporate strategy, and focus on the customer).