Green supplier development: analytical evaluation using rough set theory

Suppliers' development is a critical function within supply chain management. Green supplier development is also necessary for effective green supply chain management. Interestingly, there is a gap in the research on how an organization can effectively manage supplier development programs, and specifically green supplier development. The use of formal models to aid green supplier development management is virtually non-existent. This paper aims to fill this gap by introducing a formal model using rough set theory to investigate the relationships between organizational attributes, supplier development program involvement attributes, and performance outcomes. The performance outcomes focus on environmental and business dimensions. The rough set methodology utilizes an 'incomplete' information approach which is more realistic in some data poor environments. A multistage rough set methodology is detailed through an illustrative application. The methodology generates decision rules relating the various attributes to the performance outcomes. Included in the discussion are insights into how these rules for individual and aggregated performance (environmental, business, and joint performance) may be evaluated. Practical and research implications of this work are detailed in the paper. (C) 2010 Elsevier Ltd. All rights reserved.