We define sustainability from a value chain perspective, which we term “value system sustainability.” Value system sustainability emphasizes a firm's effort to make decisions so as to be sustainable not just from the firm's own perspective, but from the perspectives of the entire value chain participants, including internal stakeholders like managers and employees and external stakeholders like suppliers, vendors, distributors, customers, communities, governments, and non-governmental organizations, and even those in other countries, i.e., in the global market. In a sense, it looks into the sustainability issue in a holistic manner, and therefore is sublimated to a highly comprehensive level. Sustainable action or behavior means that value is created in such a way that the output is more valuable than the input so that the surplus, i.e., output minus input, can be preserved for future value creation. Here, the concept of value is not just monetary, but encompasses various tangible and intangible elements. We develop a framework to define and assess a firm's corporate sustainability, i.e., value system sustainability. It consists of three dimensions. First, there are three areas of sustainability, i.e., economic, social, and natural (environmental). Second, there are stakeholders for whom the firm should pursue sustainability, i.e., the firm's effort for sustainability must be assessed not only by the firm's own internal perspective, but also by that of the external stakeholders. Finally, the level of sustainability should be measured. Our model uses seven levels determined by strategic and operational priorities: ignorant, passive, reactive, receptive, constructive, proactive, and, finally, transcendental.
Key Learning Points
• Value chain sustainability comprises three dimensions: sustainability area, sustainability stakeholder, and sustainability level.
• Consistent with the “triple-bottom-line” concept, there are three areas of sustainability: economic, social, and environmental (or natural).
• Sustainability strategy must be viewed from the perspective of both internal and external stakeholders, i.e., the entire value chain stakeholders.
• A company's sustainability level is measured by its strategic and operational priority placed on sustainability activities.
• An ideal decision-maker for sustainability must have ethical, qualitative, and quantitative capabilities.
• An ideal decision-making process calls for three elements, i.e., calculus, creativity, and commitment.
• Supply chain strategy is dynamic in that its scope and scale evolve over time in response to changes in the environment, both economic and technological.