Niche aggregation through cumulative learning: A study of multiple electric bus projects

This paper seeks to answer the question of how learning processes support niche aggregation. It brings together literature on strategic niche management and theoretical concepts derived from literature on project management and learning in project-based firms to analyze the ongoing standardization efforts for fast-charged electric bus systems in Europe. The analysis suggests that niche aggregation is a cyclical process that depends on two learning processes: knowledge sharing and knowledge accumulation. Whereas knowledge sharing is an interactive process that involves several organizations, knowledge accumulation is an internal organizational learning process that enables firms to move beyond local niche projects and engage in external networks. These learning processes are mutually reinforcing and jointly support niche aggregation.