The entrepreneurial mindset - defined as the ability and willingness to sense, act and mobilise, responding to a judgmental decision under uncertainty - is recently embraced by both academica and practice as a useful concept capturing individuals' 'the entrepreneurialness'. Yet, research still leaves room for understanding the entrepreneurial mindset completely and comprehensively (What is it? What does it entail? How and when does it work?). Moreover, research still seems to lack a way to meaningfully contextualize the entrepreneurial mindset, particular within organizations. The latter is often described as corporate entrepreneurship (i.e., entrepreneurship within an organizational context). My dissertation focuses on answering the former...