Although principal investigators are key actors in scientific fields, there is little focus on what they actually do in shaping new scientific directions. This paper studies PIs practices to better understand their roles. Our central contribution is to identify the different ways in which PIs...

By exploring whether nanotechnologies have the potential to generate green innovations, we consider the paradox between the negative and positive side-effects that could come with the development of nanotechnologies. Starting from the conceptual framework of green product innovation, the...