Die Nachhaltigkeitsorientierte Investitionsentscheidung: Ein Konzept zur ökonomisch, ökologisch und sozial ausgewogenen Bewertung

Focused on large-scale investment projects in manufacturing and plant industries an assessment method was developed which not only shows economic, ecologic and social effects but also enables the responsible decision-makers to come to sustainable and strategically conforming investment decisions. Starting from a thorough analysis of the underlying theories – investment- and decision-making theories combined with Stakeholder theory, Corporate Sustainability and the Life Cycle approach – the first main result of the thesis (added by a statistical interpretation of investment activities in different sectors of the economy) was the conception of a sustainable investment controlling. Put into concrete terms by economical, environmental and social assessment tools, the second part of the thesis covered its methodical and practical application. Based on a critical analysis of existing methods, the main emphasis was given to the conception of new approaches to assess large-scale investment projects: On the one hand by combining a cash value added accounting with a project-based LCC and a corporate eco-balance with a project-based LCA. On the other hand, added by a project-based social-balance, by partial aggregating economic, ecologic and social effects to a entire Life Cycle Sustainability Assessment in due consideration of chances and risks depending on the possible gain or loss of legitimacy (as result of a Stakeholder-effect-analysis).